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must

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音标发音

  • 英式音标 [mʌst]
  • 美式音标 [mʌst]
  • 国际音标 [mʌst, 弱məst, məs, mst, ms]
  • 英式发音
  • 美式发音

基本解释

  • aux. 必须；一定；应该，得
  • n. 绝对必要的事物；待发酵的葡萄汁；发霉，潮气
  • n. (Must) （美）穆斯特（人名）

词源解说

  • 直接源自古英语的moste，意为应当，必须，需。

同根派生

  • adj性质的同根词
    musty：发霉的；落伍的；冷淡的。
  • n性质的同根词
    muster：集合；检阅；点名册；集合人员。
  • vi性质的同根词
    muster：召集；聚集。
  • vt性质的同根词
    muster：召集；对…进行点名；使振作。

用法辨析

    aux. (助动词)

  • must表示义务或强制,含意是“必须”“应当”; 其否定结构表示“不许可”或“不应该”; 用于一般疑问句时,表示征求对方的意见,其肯定答语用Yes, please或I'm afraid so,否定答语用needn't或don't have to; must在间接引语中表过去。
  • must表示必然性,一般只用于肯定句中,有时表示“意愿”,带有感情色彩。
  • must表示推测,暗含很大的可能性,一般只用于肯定句中,在否定句中表示推测用can't而不能用mustn't。
  • “must+be”“must+be+ v -ing”“must+表示状态的动词”可表示现在或一般的情况; “must+have”表示过去的情况; “must+表示动作的动词”表示将来的情况。
  • must可表示讽刺或抱怨,此时须以you为主语。
  • must表示客观上不愉快的情况,意为“偏偏”。

英汉例句

    用作助动词 (aux.)

  • If you can't finish the book by then, you must come and renew it.
    这本书如果你到时候还看不完,就应当来续借。

词组短语

    短语

  • must be 一定；一定要；肯定是
  • Must meet 必须符合;必须达到
  • must gear 必备装备;必带装备;必带设备
  • a must 必须的条件;必游之地;无人系统技术;必须做的事情
  • MUST READ 买家必读;备注;购买须知;美丽宝典

英英字典

    剑桥英英字典

  • (NECESSARY) used to show that it is necessary or very important that something happens in the present or future
  • (PROBABLY) used to show that something is very likely, probable, or certain to be true
  • something that is necessary

    • 柯林斯英英字典

  • mst
  • You use must to indicate that it is necessary for something to happen, usually because of a rule or law.
  • You use must to indicate that you are fairly sure that something is the case.
  • You use must, or must have with a past participle, to indicate that you believe that something is the case, because of the available evidence.
  • If you say that one thing must have happened in order for something else to happen, you mean that it is necessary for the first thing to have happened before the second thing can happen.
  • You use must to express your intention to do something.
  • You use must to make suggestions or invitations very forcefully.
  • You use must in remarks and comments where you are expressing sympathy.
  • You use must in conversation in expressions such as "I must say" and "I must admit" in order to emphasize a point that you are making.
  • You use must in expressions such as "it must be noted" and "it must be remembered" in order to draw the reader's or listener's attention to what you are about to say.
  • You use must in questions to express your anger or irritation about something that someone has done, usually because you do not understand their behaviour.
  • You use must in exclamations to express surprise or shock.
  • If you refer to something as a must, you mean that it is absolutely necessary.
  • the newly pressed juice of grapes or other fruit ready for fermentation
  • mustiness or mould
  • You say "if you must" when you know that you cannot stop someone doing something that you think is wrong or stupid.
  • You say "if you must know" when you tell someone something that you did not want them to know and you want to suggest that you think they were wrong to ask you about it.

专业释义

    计算机科学技术

  • 必须

    So users must be able to determine the validity of a certificate.
    因此用户必须能验证证书。

  • 多目的使用者导向软体技术