短语动词
中文翻译：务必
同义词：
['certainly', 'definitely', "must例句：1. You must be here by six o'clock.（你六点前必须到这儿。）2. I certainly will help you with that.（我肯定会帮你的。）"]
例句：
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1. You must be here by six o'clock.
你六点前必须到这儿。
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2. I certainly will help you with that.
我肯定会帮你的。
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3.We must finish this project before the deadline.
我们必须在截止日期之前完成这个项目。