modal verb

must

必须, 一定, 必需品

You must finish your homework.

你必须完成你的作业。

He must be tired.

他肯定累了。

This new phone is a must-have.

这款新手机是必备品。

must + [动词原形] 必须做某事 You must stop at the red light.

must be + [形容词/名词] 一定是…… She isn't answering her phone, she must be busy.

a must [名词] 必需品 This book is a must for all students.

同义词: have to, need to, should

源自古英语 'moste',是 'motan'(意为“被允许,必须”)的过去式。

记住“我必须做这件事(I MUST do this),它是一个必需品(it's a MUST!)”来同时记忆动词和名词的用法。

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