back

a T-shirt with a picture of a snake on the back.后背印了一条蛇的T恤衫

She stepped back from the door expectantly..她充满期待地从门口往后退。

He pushed her away and she fell back on the wooden bench..他把她推开，然后她向后跌坐在长木椅上。

go back,回去；追溯

back in,[体育]后内刃

back of,在…后面；在…背后

back on,背靠

back into,倒车撞上（某物）

in the back,在后面

at the back,在后面；在…后部

back and forth,反复地，来回地

back up,v. 支持，援助；（资料）备份；倒退；裱

way back,好久以前，老早就

on the back of,在…之外，在…后面

at the back of,在…背后，支持；在…的后面；在…的后部

back down,放弃；让步

in the back of,在……后面；在……之后

back out,退出；收回

on my back,在背上；找我麻烦，挑我毛病

on one's back,卧病在床

back off,后退；软化；减轻；卸下

back to back,背靠背；连续，紧接

go back on,违背；背弃