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fall back 英 [fɔ:l bæk] 　美 [fɔl bæk]

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fall back

phrase. 退却，后退；回落　

In panic mode, we fall back into our old habits.　在恐慌状态中，我们又回到了我们的老习惯。

Otherwise, programmers will fall back on another tendency: when in doubt, build it over again.　否则，编程人员将陷入另一种倾向：一旦有怀疑，就再次构建。

1. In panic mode, we fall back into our old habits.

在恐慌状态中，我们又回到了我们的老习惯。
2. Otherwise, programmers will fall back on another tendency: when in doubt, build it over again.

否则，编程人员将陷入另一种倾向：一旦有怀疑，就再次构建。
3. Know at least two or three languages, so if one dies off, you have another one to fall back on while you train for a new technology.

至少了解两到三种语言，所以，如果某种语言过时了，你在学习新技术的时候还可以依靠另一种语言。

ˌfall ˈback1to move or turn back后退；撤退；退却retreatThe enemy fell back as our troops advanced.我军部队挺进，敌军向后撤退。2to decrease in value or amount（价值）降低；（数量）减少