Required（）：n. - 完整释义与助记

✅ 同义词

necessary obligatory prerequisite prescribed requisite compulsory

arbitrary optative permissive unobligative unobligatory discretional discretionary facultative

You don't have to work yourself sick.

你不必让自己工作到病倒。

I want you to consider all pros and cons.

我希望你考虑一下所有的正反两方面的理由。

By the time he can talk, he is the little creature of his culture,

到他会说话时，他就是传统文化塑造的一个小孩子了；

更多情景英语 ›

radioamplifier

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reflectance

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reversive

right of reply