1
fall back
表示物理或策略上的后退。
The army was forced to fall back.
部队被迫撤退。
撤退；后退
先理解核心含义，再看它在真实句子里的用法。
撤退；后退
to retreat; to move back
The army was forced to fall back.
部队被迫撤退。
常指军队或人群在压力下后退。
参见 fall, back。
Used other than figuratively or idiomatically: see fall, back.
撤退。
To retreat.
未能履行承诺或目的。
To fail to fulfill a promise or purpose.
将时钟拨回以结束夏令时。
To turn the clocks back for the end of daylight saving time.
fall back
Base
原形
falls back
3rd person
第三人称单数
falling back
-ing
现在分词
fell back
Past
过去式
fallen back
Past participle
过去分词
He always falls back when facing danger.
面对危险时他总是后退。
The troops fell back to a safer position.
部队退到了一个更安全的位置。
They have fallen back on their original plan.
他们已经退回到最初的计划。
指后退或退却的动作。
When the flood waters rose, the villagers fell back to higher ground.
当洪水上涨时，村民撤退到地势更高的地方。
The team fell back to their own half after conceding a goal.
丢球后，球队退回到本方半场。
As the storm approached, the campers fell back toward the shelter.
暴风雨临近时，露营者退向庇护所。
表示物理或策略上的后退。
The army was forced to fall back.
部队被迫撤退。
常指在紧急情况下依赖备用的人或物。
If the plan fails, we have no one to fall back on.
如果计划失败，我们无人可以依靠。
常用于计算机领域，指切换到备选状态。
The software will fall back to a safe mode.
该软件将回落到安全模式。
Not this
The army fell back the enemy.
Use this
The army fell back from the enemy.
动词短语'fall back'是不及物的，不能直接跟宾语。表达'从…后退'时需加介词'from'。
Not this
He fell back in the competition and lost.
Use this
He fell behind in the competition and lost.
'fall back'表示'后退'，但'在比赛中落后'应使用'fall behind'，两者语义不同。
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常用于表示后退或退却的动作。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.