非...不可

非...不可 [fēi bù kě]

1. ■ （必须） must; have to:

你非努力学习不可。 You must study hard.

我们非早些离开不可。 We had to leave early.

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常用词组

1. ■ （一定） will inevitably; be bound to:

他们不顾生命危险， 非完成任务不可。 They were bound to fulfil the task even at the risk of their lives.