and

and

英[ənd; ən; n; ænd]美[ ənd,ən,n,ænd]

conj.和，又，加，然后，那么，结果是，愈来愈；

英语六级真题

is becoming increasingly popularbenefits sharers and users alikemakes researchers successfulsaves both money and laborMacy's reported its sales plunged 5.

Yet later on, the more affluent children end up in college and on the way to the middle class, while working-class children tend to struggle.

Working-class parents, meanwhile, believe their children will naturally thrive, and give them far greater independence and time for free play.

Working-class parents teach their children to be obedient and show respect to adults.

Working-class children are happier, more independent, complain less and are closer to family members, Ms.

Within Italy, the great focus was Rome, whose ancient ruins and more recent achievements were shown to every Grand Tourist.

White storks feed on locusts ( ' , 蝗虫) and other insects that can become pests if their numbers get out of hand.

While many birds travelled along well-known routes to warmer climates, others stopped short and spent the winter on landfills, feeding on food waste, and the multitudes of insects that thrive on the dumps.

While alternative estimates of the damage from carbon emissions differ, and it's especially hard to reckon the likely costs of possible catastrophic climate events, most estimates suggest substantial negative effects.

While Thanksgiving, Black Friday and Cyber Monday all saw record spending online, in-store sales plunged over the holiday weekend.

Well-off families are ruled by calendars, with children enrolled in ballet, soccer and after-school programs, according to a new Pew Research Center survey.

Wealthy parents are concerned about their children's mental health and busy schedules.

We live today indebted to McCardell, Cashin, Hawes, Wilkins, and Maxwell, and other women who liberated American fashion from the confines of Parisian design.

Unfortunately, the current low prices for oil, gas, and coal may provide little incentive for research to find even cheaper substitutes for those fuels.

Travel was arduous and costly throughout the period, possible only for a privileged class—the same that produced gentlemen scientists, authors, antique experts, and patrons of the arts.

To match the growing demand, services are springing up to make it easier to publish research products online and enable other researchers to discover and cite them.

Thus was born the idea of the Grand Tour, a practice which introduced Englishmen, Germans, Scandinavians, and also Americans to the art and culture of France and Italy for the next 300 years.

They were versed in literature and interested in art.

They were the pioneers of gender equity, in their useful, adaptable clothing, which was both made for the masses and capable of self-expression.

They were courageous and venturesome.

They try to develop their skills through close supervision and organized activities, and teach children to question authority figures and navigate elite institutions.

They might eat something toxic and damage their health.

They had enough travel and outdoor-life experience.

They gained some knowledge of classical art and architecture.

They are taught to be compliant and respectful to adults.

They are more likely to grow up in neighborhoods that their parents say aren't great for raising children, and their parents worry about them getting shot, beaten up or in trouble with the law.

They advocated equity between men and women.

These designers established the modem dress code, letting playsuits and other activewear outfits suffice for casual clothing, allowing pants to enter the wardrobe, and prizing rationalism and versatility in dress, in contradiction to dressing for an occasion or allotment of the day.

There is strong evidence that both innovation and adoption of cleaner technology are strongly encouraged by higher fossil fuel prices.

There is no best parenting style or philosophy, researchers say, and across income groups, 92% of parents say they are doing a good job at raising their children.

There are usually two parents, who spend a lot of time reading to children and worrying about their anxiety levels and hectic schedules.

There appeared more and more Roman-style buildings.

The trend of social and economic development.

The survey also probed attitudes and anxieties.

The state's facilities management project team is still in the process of developing its business justification and expects to have that completed and available to the public at the end of February, Martin said.

The scientists tracked white storks from different colonies in Europe and Africa.

The result would be higher emissions of carbon dioxide and other greenhouse gases.

The recent discovery of the giant Zohr gas field off the Egyptian coast will eventually have impact on pricing in the Mediterranean region and Europe, and there is significant development potential in many other places, notably Argentina.

The reasoning behind this saying is that low oil prices discourage investment in new production capacity, eventually shifting the oil supply curve backward and bringing prices back up as existing oil fields—which can be tapped at relatively low marginal cost—are depleted.

The prices of coal are low as a result of over-supply and decreasing demand.

The most successful sharers—those whose data are downloaded and cited the most often—get noticed, and their work gets used.

The most recent one took place last week in Washington, D.C.Students join a team through their schools, which provide a volunteer coach and pay a nominal fee to send students to regional and state competitions.

The lives of children from rich and poor American families look more different than ever before.

The increasing differences in child rearing between rich and poor families reflect growing social inequality.

The design objective and the business commitment were to sportswear, and the distinctive traits were problemsolving ingenuity and realistic lifestyle applications.

The demographics of that group looked quite different from those in the competition round—of the 16 video finalists, 13 were girls and eight were African-American students.

The cycle continues: Poorer parents have less time and fewer resources to invest in their children, which can leave children less prepared for school and work, which leads to lower earnings.

The company blamed much of the poor performance in November and December on unseasonably warm weather.

The changing attitude of journals and funders.

The birds can easily eat pieces of plastic or rubber hands and they can die, said Flack.

The achievement gap between children from high- and lowincome families is 30-40% larger among children born in 2001 than those born 25 years earlier, according to Mr.

The Russian, Greek and Polish storks flew as far as South Africa, while those from Spain, Tunisia and Germany flew only as far as the Sahel.

The Math Olympiad Summer Training Program is a three-week math camp held by the Mathematical Association of America that leads straight to the international championship and is free for those who make it.

The Los Angeles Math Circle, held at the University of California, Los Angeles, began in 2007 with 20 students and now has more than 250.

The International Monetary Fund calculates that countries can generate substantial fiscal revenues by eliminating fossil fuel subsidies and levying carbon charges that capture the domestic damage caused by emissions.

The Grand Tourist was typically a young man with a thorough grounding in Greek and Latin literature as well as some leisure time, some means, and some interest in art.

The German traveler Johann Winckelmann pioneered the field of art history with his comprehensive study of Greek and Roman sculpture; he was portrayed by his friend Anton Raphael Mengs at the beginning of his long residence in Rome.

The British traveler Charles Thompson spoke for many Grand Tourists when in 1744 he described himself as being impatiently desirous of viewing a country so famous in history, a country which once gave laws to the world, and which is at present the greatest school of music and painting, contains the noblest productions of sculpture and architecture, and is filled with cabinets of rarities, and collections of all kinds of historical relics.

Tennessee's technical and community colleges will not outsource ( ' , 外包) management of their facilities to a private company, a decision one leader said was bolstered by an analysis of spending at each campus.

Technological innovations have unleashed the power of renewables such as wind, hydro, solar, and geothermal ( ' , 地热).

Teams of four students make a video illustrating a math problem and its real-world application.

Teachers in low-income urban and rural areas with no history of participating in math competitions may not know about advanced-math opportunities like MathCounts—and those who do may not have support or feel trained to lead them.

Students use forums to chat, play games, and solve problems together at no cost, or they can pay a few hundred dollars to take courses with trained teachers.

Students attend after-school clubs, summer camps, online forums and classes and university-based math circles, to prepare for the competitions.

Some communities have agreed to share online—geneticists, for example, post DNA sequences at the GenBank repository ( ' , 库), and astronomers are accustomed to accessing images of galaxies and stars from, say, the Sloan Digital Sky Survey, a telescope that has observed some 500 million objects—but these remain the exception, not the rule.

Social scientists say the differences arise in part because low-income parents have less money to spend on music class or preschool, and less flexible schedules to take children to museums or attend school events.

Since there were few museums anywhere in Europe before the close of the eighteenth century, Grand Tourists often saw paintings and sculptures by gaining admission to private collections, and many were eager to acquire examples of Greco-Roman and Italian art for their own collections.

Schools or teachers who sign up for the National Math Club receive a kit full of activities and resources, but there's no special teacher training and no competition attached.

Researchers who share get plenty of personal benefits, including more connections with colleagues, improved visibility and increased citations.

Researchers in Germany used miniature GPS tags to track the migrations of 70 white storks ( ' , 鹳) from different sites across Europe and Asia during the first five months of their lives.

Renewables account for only a small share of global primary energy consumption, which is still dominated by fossil fuels—30% each for coal and oil, 25% for natural gas.

Publishing data and code allows your science to be reproducible.

Public policies aimed at young children have helped, including public preschool programs and reading initiatives.

Participation grows through friends and networks and if you realize that's how they're growing, you can start to take action and bring in other students, he said.

Parents of advanced-math students and MathCounts coaches say the children are on the website constantly.

Parenting approaches of working-class and affluent families both have advantages.

Panini's Ancient Rome and Modern Rome represent the sights most prized, including celebrated Greco-Roman statues and views of famous ruins, fountains, and churches.

Over the next five years, the group helps the students get into other elite summer math programs, high-performing high schools, and eventually college.

Only about 50 students are invited based on their performance on written tests and at the USA Math Olympiad.

One relative bright spot for Macy's during the holiday season was the online channel, where it rang up double-digit increases in sales and a 25% increase in the number of orders it filled.

Of families earning more than $75,000 a year, 84% say their children have participated in organized sports over the past year, 64% have done volunteer work and 62% have taken lessons in music, dance or art.

Of families earning less than $30,000, 59% of children have done sports, 37% have volunteered and 41 % have taken arts classes.

Notwithstanding important recent progress in developing renewable fuel sources, low fossil fuel prices could discourage further innovation in, and adoption of, cleaner energy technologies.

Natural gas and coal—also fossil fuels—have similarly seen price declines that look to be long-lived.

Nations from around the world have gathered in Paris for the United Nations Climate Change Conference, COP 21, with the goal of a universal and potentially legally-binding agreement on reducing greenhouse gas emissions.

Much of the waste is discarded rotten meat, mixed in with other human debris such as plastic bags and old toys.

Most Grand Tourists, however, stayed for briefer periods and set out with less scholarly intentions, accompanied by a teacher or guardian, and expected to return home with souvenirs of their travels as well as an understanding of art and architecture formed by exposure to great masterpieces.

Morgan said those findings—which included data from the system's 13 community colleges, 27 technical colleges and six universities—were part of the decision not to move forward with Governor Bill Haslam's proposal to privatize management of state buildings in an effort to save money.

Morgan said last week that he would retire at the end of January because of the governor's proposal to split off six universities of the Board of Regents system and create separate governing boards for each of them.

Migrating birds affect ecosystems both at home and at their winter destinations, and disrupting the traditional routes could have unexpected side effects.

Middle-class and higher-income parents see their children as projects in need of careful cultivation, says Annette Lareau, whose groundbreaking research on the topic was published in her book Unequal Childhoods: Class, Race and Family Life.

Massive rubbish dumps and sprawling landfills constitute one of the more uncomfortable impacts that humans have on wildlife.

London was a frequent starting point for Grand Tourists, and Paris a compulsory destination; many traveled to the Netherlands, some to Switzerland and Germany, and a very few adventurers to Spain, Greece, or Turkey.

Less-educated parents, and poorer and black and Latino parents are more likely to believe that there is no such thing as too much involvement in a child's education.

Italian architects were hired to design houses and gardens.

It's important to allow readers and reviewers to see exactly how you arrive at your results.

Interest in elite high school math competitions has grown in recent years, and in light of last summer's U.S. win at the International Math Olympiad ( ' , IMO)—the first for an American team in more than two decades— the trend is likely to continue.

Independence came in tying, wrapping, storing, harmonizing, and rationalizing that wardrobe.

In the past few years, MathCounts added two new middle school programs to try to diversify its participant pool—the National Math Club and the Math Video Challenge.

In the past decade, even as income inequality has grown, some of the socioeconomic differences in parenting, like reading to children and going to libraries, have narrowed.

柯林斯高阶英汉双解学习词典释义

CONJ-COORD

（连接两个以上的单词、词组或子句）和，与，同

You use and to link two or more words, groups, or clauses.

例句

CONJ-COORD

（连接两个相同的单词或短语，以强调某事物的程度、暗示某事继续发生或在一段时间内不断增加）接连，越…越…

You use and to link two words or phrases that are the same in order to emphasize the degree of something, or to suggest that something continues or increases over a period of time.

例句

CONJ-COORD

（连接两件相继发生的事件）然后，就

You use and to link two statements about events when one of the events follows the other.

例句

CONJ-COORD

（连接两句话，第二句话的意思是第一句的延伸）则，而

You use and to link two statements when the second statement continues the point that has been made in the first statement.

例句

CONJ-COORD

（连接两个从句，表示因果关系）那么，于是

You use and to link two clauses when the second clause is a result of the first clause.

例句

CONJ-COORD

（表示停顿，以便对所说的话进行评论）再说，而

You use and to interrupt yourself in order to make a comment on what you are saying.

例句

CONJ-COORD

（用于句首，引出补充说明）还有，不过

You use and at the beginning of a sentence to introduce something else that you want to add to what you have just said. Some people think that starting a sentence with and is ungrammatical, but it is now quite common in both spoken and written English.

例句

CONJ-COORD

（用以引导与某人之谈话有关的问句）那么，还有

You use and to introduce a question which follows logically from what someone has just said.

例句

CONJ-COORD

（广播员等用以转换话题或讨论刚才提及的话题）也

And is used by broadcasters and people making announcements to change a topic or to start talking about a topic they have just mentioned.

例句

CONJ-COORD

（表示两个数字相加）加

You use and to indicate that two numbers are to be added together.

例句

CONJ-COORD

（用于整数后、分数之前）

And is used before a fraction that comes after a whole number.

例句

CONJ-COORD

（用在大于一百的数字中，置于百位或千位之后，十位及个位之前）

You use and in numbers larger than one hundred, after the words 'hundred' or 'thousand' and before other numbers.

例句

英汉词典释义

conj.

和, 与, 及

那么, 则

然后, 接着

而且, 还, 又

加；加上

（用于动词前代替 to，表示目的）…为了

（连接相同的词，强调差别）与…不同

（引出说话或提问）那么，于是