knock

knock怎么读

英式音标：[nɒk]

美式音标：[nɑk]

knock基本解释

vi. 敲；打；敲击

vt. 敲；打；敲击；批评

n. 敲；敲打；爆震声

knock的意思释义

n.

短促的敲打（声）；爆震声；敲击声；敲门（或窗等）声

vi.

猛烈敲击；与某物相撞；撞到了桌子；

vt.

（心）怦怦跳；把…撞击成（某种状态）；批评；

变形

复数：knocks过去式：knocked过去分词：knocked现在分词：knocking第三人称单数：knocks

双语释义

n.(名词)

[C]短促的敲打(声) (sound of) a sharp blow

[C]爆震声 (in an engine) sound of knocking

[C](板球赛的)一* (in cricket) innings

[C]一件倒霉事或麻烦事 a piece of bad luck or trouble

v.(动词)

vt. & vi. 敲,击,打 hit or strike

vt. 批评,数落,非难 say critical or insulting things about sb/sth

英英释义

knock[ nɔk ]

n.

the sound of knocking (as on a door or in an engine or bearing)

\"the knocking grew louder\"

同义词：knocking

negative criticism

同义词：roast

a vigorous blow

\"the sudden knock floored him\"

同义词：bashbangsmashbelt

a bad experience

\"the school of hard knocks\"

the act of hitting vigorously

同义词：beltrapwhackwhang

v.

deliver a sharp blow or push :

\"He knocked the glass clear across the room\"

同义词：strike hard

rap with the knuckles

\"knock on the door\"

knock against with force or violence

同义词：bump

make light, repeated taps on a surface

同义词：taprappink

sound like a car engine that is firing too early

同义词：pinkping

find fault with; express criticism of; point out real or perceived flaws

\"Don\'t knock the food--it\'s free\"

同义词：criticizecriticisepick apart

knock用法及例句

词汇搭配

用作名词 (n.)

动词+～

get the knock被解雇,遭到失败

hear a knock听到敲门声

receive a knock受到挫折

stand the knock忍受指责

take a knock受到严重损失

形容词+～

gentle knock轻轻的敲门声

loud knock重重的敲门声

good knock打一*好球

first knock第一*球

bad knock损失不少钱财

damaging knock破坏性的挫折

hard knock沉重的打击

名词+～

engine knock发动机的爆震声

用作动词 (v.)

～+名词

knock a ball拍球

knock colds消除感冒

knock head撞头

knock sb\'s hometown抨击某人的家乡

knock sb\'s play抨击某人的戏剧

knock such notions给人以深刻的观念

knock the ash敲烟灰

knock the bottom of the box敲箱子底

knock the dust敲打灰尘

knock the England team挖苦英格兰队

knock the foreign policy抨击外交*策

knock the furniture碰倒家具

knock the glass打破玻璃

knock the nail钉钉子

knock the price降价

knock the wall拆墙

knock the worry摆脱忧愁

～+副词

knock badly剧烈撞击

knock loudly发出大声地碰撞

knock about〔around〕流浪

knock down撞倒,拆除,挣(钱)

knock down a machine把机器拆卸开来

knock down a plane击落飞机

knock down an A in history历史考得优等分数

knock down good money挣很多钱

knock down some cash偷一些现金

knock off停止工作,完成,结束,快速写

knock off a few lines匆匆写几句

knock off work歇工

knock out击倒,使昏迷或入睡,彻底击败

knock out the enemy guards干掉敌人哨兵

knock oneself out to get through the difficulty竭尽全力渡过困难

knock oneself out preparing for the experiment努力为实验做好准备

knock oneself out with excessive work过度工作而筋疲力尽

knock over打翻,轻易击败

knock over a lamp打翻一盏灯

knock up击打,草率或匆忙地作出

knock up a meal匆匆做好一餐饭

～+介词

knock against偶然碰到

knock at a door敲门

knock into将…击打进或撞进,偶然碰到

knock into the old teacher偶然碰到那位老教师

knock sb off sb\'s feet把某人打倒在地

knock on the door敲门

knock sb on the head打某人的头

knock sth on the head破坏某事

knock sth to pieces把某物打碎

knock with a bat用球拍打

词组短语

knock on撞击撞出；敲击（门、窗）

knock at敲（门、窗等）

knock off击倒；停工；中断

knock down击倒；拆卸

knock at the door敲门；把……撞倒；撞墙

knock out敲空；击倒；打破；使筋疲力竭

knock it off停止做；住口，别再讲下去了

knock on the door敲门

knock over打翻；撞倒

knock in（把钉子）钉入

knock on wood敲木头，企求好运；吉人天相

knock up敲门唤醒；[英口]筋疲力尽；往上敲

knock back（摇把）反击，（活塞）逆行，（曲轴）反转；反座；回击，击退；使...大吃一惊

knock against撞击，与…冲突；偶然遇见

knock sensor爆振传感器；进气流量传感器

knock into撞上；与…相撞

knock off work敲落工作；歇工

同近义词辨析

knock, beat, strike, hit

knock敲门；

beat打鼓;连续打；

strike敲锣，钟敲几点，猛的一击；

hit击中，打一下

pat, knock, rap, tap

这组词都有“敲、击”的意思，其区别是：

pat指用手轻拍以示同情、赞同或爱抚。

knock指用拳头或其它器械猛敲或猛打；也指用手轻敲某物。

rap指用手指或木棒等快速地轻敲或急拍。

tap多指慢慢地连续地轻击或轻拍。

双语例句

用作动词(v.)

Someone is knocking at the door.

有人在敲门。

One may knock to signal one\'s presence to others.

可以用敲击发出的声音向别人表明自己的存在。

He knocked a big hole in the wall.

他把墙撞出了一个大洞。

I am so hurried as to knock into my teacher.

我如此匆忙以至于撞到老师身上。

The man is knock down by the bicycle.

这个男人被自行车撞倒了。

She knocked the bottom out of our argument.

她把我们的论点驳得体无完肤。

用作名词(n.)

There was a knock at the window.

有人敲了一下窗户。

I heard footsteps, then a knock on the door.

我听到脚步声，随后是敲门的声音。

There was no answer to my knock, so I went away.

我敲门没人应，所以就走开了。

She took a bad knock when her husband died.

丈夫的死,使她受到沉重的打击。

When I fall, I get a terrible knock on the head.

我摔倒时头撞得很厉害。

例句参考

IFN-gamma potentiates atherosclerosis in ApoE knock-out mice.

Suppression of Intestinal Polyposis in ApcΔ716 Knockout Mice by Inhibition of Cyclooxygenase 2 (COX-2)

A Parallelization Research for FY Satellite Rainfall Estimate Day Knock off Product Algorithm

Construction of Escherichia coli K‐12 in‐frame, single‐gene knockout mutants: the Keio collection

Defective haematopoiesis and vasculogenesis in transforming growth factor-beta 1 knock out mice.

Effects of matrix metalloproteinase-9 gene knock-out on the proteolysis of blood-brain barrier and white matter components after cer...

Generation and characterization of androgen receptor knockout (ARKO) mice: an in vivo model for the study of androgen functions in s...

Dual Roles for Glucokinase in Glucose Homeostasis as Determined by Liver and Pancreatic β Cell-specific Gene Knock-outs Using Cre R...

Green fluorescent protein expression and colocalization with calretinin, parvalbumin, and somatostatin in the GAD67-GFP knock-in mou...

Baba T, Ara T, Hasegawa M, Takai Y, Okumura Y, Baba M et al.. Construction of Escherichia coli K-12 in-frame, single-gene knockout m...

knock词源

knock

knock: [OE] knock is a classic onomatopoeic word: that is to say, it originated in a direct imitation of the sound it denotes. The similar Swedish knacka ‘knock’ may be related. The figurative use of the word for ‘criticize’ originated in late 19th-century America.

knock (v.)

Old English cnocian (West Saxon cnucian), \"to pound, beat; knock (on a door),\" likely of imitative origin. Meaning \"deprecate, put down\" is from 1892. Related: Knocked; knocking. Knock-kneed first attested 1774. Knock-down, drag-out is from 1827. Command knock it off \"stop it\" is first recorded 1880, perhaps from auctioneer\'s term for \"dispose of quickly:\"

At the commencement of the sales, he gave every one that wanted to purchase a paper containing a description of the lands that were to be sold; and, as the sales were cried, he called over the numbers and described the land; and when it got up to one dollar and a quarter an acre, if no body bid, after it was cried two or three times, he would say, knock it off, knock it off. [U.S. Senate record, 1834]

knock (n.)

mid-14c., from knock (v.). As an engine noise, from 1899.