英语词汇“must”的释义、区别辨析及用法例句-英语同义词词典

单词	must
例句	mustmust /məst, strong mʌst/ verb ► must to need to do something because it is very important, especially because someone in authority or a rule says that you should do it. Must is stronger than have to, and it is more important that you obey: Dad says we must be back home before ten o'clock. You must not smoke in here. ➔ GRAMMAR: Don't say: I must to do it. Say: I must do it. ► have to to need to do something because it is necessary or important: I have to hurry because I’m late for class. He has to return the books to the library. ► be required to (formal) to have to do something, because there is a law or official rule that says you must: Some travelers are required to have a visa before they enter the U.S. ► be expected to (formal) to have to do something because it is right, part of your job, or something you are responsible for: You are expected to hand in your homework on time. ► be obliged to (formal) to have to do something, especially because you feel it is the right thing to do or because the situation makes it necessary to do it: Her husband lost his job, and she was obliged to work so that they could pay their bills.
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