中文翻译与英英解释

1.后备物。
2.撤退；退路。

fall:    vi. (fell; fallen ) 1.落下；散落， ...

back:    n. 1.背，背部；背脊；背面，反面；背后，后部，后面， ...

go back to bad behavior; "Those who recidivate are often minor criminals"
同义词：relapse, lapse, recidivate, regress, retrogress,

retreat
同义词：lose, drop off, fall behind, recede,

move back and away from; "The enemy fell back"

hang (back) or fall (behind) in movement, progress, development, etc.
同义词：lag, dawdle, fall behind,

fall backwards and down

have recourse to; "The government resorted to rationing meat"
同义词：resort, recur,

例句与用法

The enemy fell back as our troops advanced .
我军前进，敌军后退。

Jude fell back upon his old complaint .
裘德又提起他的旧怨来了。

I fell back and hurt my head .
我向后跌倒，把头跌伤了。

Charlotte fell back and sat down heavily on the bed .
夏洛蒂往后一倒，一下坐在床上。

He tries to fall back on the other pleasure of life .
他试图回到生活的其他享乐之中。

The enemy had to fall back on the second line of defence .
敌人不得不退到第二道防线。

The other ladies had fallen back at her approach .
她走近时别的妇女都不约而同地后退一步。

Then it fell back on saugar to await reinforcements .
随后，舰队撤退到索迦尔岛，等待增援。

At least we can fall back on candles if the electricity fails .
停电时我们至少可以使用蜡烛。

Bethune and the unit fell back to a town called sung chia chuang .
白求恩和医疗队撤退到宋家庄。