up and down

up and down读音音标

英 [ʌp ænd daun]

美 [ʌp ənd daʊn]

up and down意思解释

释义

上上下下；

起落；

英英释义

adv.

moving backward and forward along a given course

alternately upward and downward

双语例句

They are getting up and down all the time.它们总是不停地上上下下跑。I\'ve looked high and low for my wallet.我上上下下地找我的钱包。The lion paced restlessly up and down in its cage.狮子在笼子里不安地来回走动。It takes me an hour to walk there and back.我步行一个来回用一小时。