| 单词 | fall back on (或upon) |
| 释义 | fall back on (或upon)1.■求助于，求…的支持，转而依靠：Doctors sometimes fall back on old cures.医生们有时求助于传统疗法。2.■退守，撤退：The battle is going badly for us,we'd better fall back on the town in the hills.战斗对我们越来越不利，我们最好退守到山中的小镇。3.■重提，回过来再谈，回到…上面来：I must fall back upon what I said previously.我必须言归正传。4.■往后退倒在…上：The tired worker fell back on the bed and at once fell asleep.疲倦的工人倒在床上就马上睡着了。 |
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