must
- modal(表示必要或很重要)必须;(表示很可能或符合逻辑)一定，肯定;（用于表示据已知情况推测）很可能是，想必是，肯定是;(提出建议)应该，得;（用于表示意图）一定要，坚持要;（表示邀请）务必，一定要;（用于表示同情）必定，想必;（用于感叹句，表示惊讶或震惊）一定是，准是;（用于问句中表示生气）偏偏，非要
- n.必要条件;（发酵前或发酵中的）葡萄汁;必须做(或看、买等)的事;发霉，霉;必不可少的东西;葡萄渣;（尤指发情期的公象或雄骆驼等的）狂暴状态
- adj.<口>必要的，必不可少的，极其重要的
mustmodal verb
（表示必要或很重要）必须
used to say that sth is necessary or very important (sometimes involving a rule or a law)
All visitors must report to reception.
所有来宾必须到接待处报到。
Cars must not park in front of the entrance (= it is not allowed) .
车辆不得停在入口处。
I must ask you not to do that again.
我得劝你别再那样做了。
You mustn't say things like that.
你千万别说那样的话。
I must go to the bank and get some money.
我得上银行取点儿钱。
I must admit (= I feel that I should admit) I was surprised it cost so little.
我得承认，这么便宜，真让我惊讶。
Must you always question everything I say? (= it is annoying)
我说什么你都非要提出质疑吗？
‘Do we have to finish this today?’ ‘Yes, you must.’
“我们今天一定得完成这工作吗？”“对，必须完成。”
‘No, you don't have to.’
（表示很可能或符合逻辑）一定
used to say that sth is likely or logical
You must be hungry after all that walking.
走了这么远的路，你一定饿了吧。
He must have known (= surely he knew) what she wanted.
他一定早已知道她想要什么了。
I'm sorry, she's not here. She must have left already (= that must be the explanation) .
抱歉，她不在这儿。准是走了。
（提出建议）应该，得
used to recommend that sb does sth because you think it is a good idea
You simply must read this book.
这本书你可一定要看一看。
We must get together soon for lunch.
我们得马上集合去吃午饭。
used to say that sb may do sth but you do not really want them to
“我可以抽烟吗？”“如果你一定要抽的话。”
‘Can I smoke?’ ‘If you must.’
It's from my boyfriend, if you must know .
倘使你一定要知道的话，这是我男朋友给的。
used to tell people that sth is so good or interesting that they should see, read, get it, etc.
悉尼是世界上的必游城市之一。
Sydney is one of the world's must-see cities.
The magazine is a must-read in the show business world.
这份杂志是演艺界人士的必读刊物。
noun
usually sing.必须做（或看、买等）的事
something that you must do, see, buy, etc.
His new novel is a must for all lovers of crime fiction.
他的新作是所有犯罪小说爱好者的必读书。
must
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Must is a modal verb. It is followed by the base form of a verb.
must为情态动词，后跟动词原形。
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MODAL 必须；一定要
You use must to indicate that you think it is very important or necessary for something to happen. You use must not or mustn't to indicate that you think it is very important or necessary for something not to happen.What you wear should be stylish and clean, and must definitely fit well...
你的穿着应该整洁漂亮，而且必须非常合身。
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4
MODAL (通常因为规定或法律)必须，应当
You use must to indicate that it is necessary for something to happen, usually because of a rule or law.Candidates must satisfy the general conditions for admission...
候选人必须满足参选的总体条件。
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5
MODAL (用于表示肯定推测)一定，谅必
You use must to indicate that you are fairly sure that something is the case.At 29 Russell must be one of the youngest ever Wembley referees...
29岁的拉赛尔一定是有史以来温布利球场上的裁判员中最年轻的一个。
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MODAL (用于表示据已知情况推测)很可能是，想必是，肯定是
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.'You must be Emma,' said the visitor...
来客说：“你肯定是埃玛。”
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MODAL (用于表示前者为后者的前提)应该已经(发生)
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.In order to take that job, you must have left another job...
为得到那份工作，你肯定已辞去了另一份工作。
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MODAL (用于表示意图)一定要，坚持要
You use must to express your intention to do something.I must be getting back...
我一定要回来。
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9
MODAL (用于表示建议或邀请)务必，一定要
You use must to make suggestions or invitations very forcefully.You must see a doctor, Frederick...
弗雷德里克，你一定得去看医生。
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MODAL (用于表示同情)必定，想必
You use must in remarks and comments where you are expressing sympathy.This must be a very difficult job for you...
对你来说，这份工作想必很难。
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11
MODAL (用于强调)我得说/我得承认
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.This came as a surprise, I must say...
我得说这真是个意外。
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12
MODAL (用于引起读者或听众的注意)一定要注意/一定记住
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.It must be noted, however, that not all British and American officers carried out orders...
然而，一定要注意不是所有的英国和美国军官都执行了命令。
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MODAL (用于问句中表示生气)偏偏，非要
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.Why must you do everything as if you have to win?...
你为什么做每件事情都跟你非要赢似的？
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14
MODAL (用于感叹句，表示惊讶或震惊)一定是，准是
You use must in exclamations to express surprise or shock.'Go! Please go.' — 'You must be joking!'...
“走吧！请走吧。”——“你一定是在开玩笑吧！”
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15
N-COUNT 必不可少的事物;一定要做的事
If you refer to something as a must, you mean that it is absolutely necessary.The new 37th issue of National Savings Certificates is a must for any taxpayer...
新发行的第37期国家储蓄债券是任何一个纳税人的必然之选。
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PHRASE 如果你一定要(这样做的话)
You say 'if you must' when you know that you cannot stop someone doing something that you think is wrong or stupid.If you must be in the sunlight, use the strongest filter cream you can get...
如果一定要呆在太阳底下的话，就擦上你能买到的防晒系数最高的防晒霜。
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PHRASE 如果你一定想要知道的话
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.'Why don't you wear your jogging shorts Mum?' — 'Well, my legs are too skinny, if you must know.'
“妈妈，为什么不穿你的慢跑短裤呢？”——“哦，如果你非要问的话，因为我的腿太瘦了。”
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We must make good use of the available space .
我们必须充分利用现有空间。
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And again , we must think of the cost .
再说，我们必须考虑成本。
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You 've been a great help , I must say .
依我看，你真是帮了个大忙啊。
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I must go to the bank and get some money .
我得上银行取点儿钱。
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He must be 70 if he 's a day !
他至少70岁了！
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You must signal which way you are going to turn .
你要朝哪个方向转，必须发出信号。
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You 're a great help , I must say !
我得说，你可没少帮忙！
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There must be a way around the problem .
肯定有解决这个问题的办法。
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The work must be completed within a certain time limit .
这项工作必须在一定期限内完成。
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There is a growing realization that changes must be made .
越来越多的人认识到改革势在必行。
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First of all we must identify the problem areas .
首先我们必须找出问题所在。
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We must take positive steps to deal with the problem .
我们必须采取积极步骤处理这个问题。
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The company has decided it must present a more modern image .
公司已决定，必须展现出更加现代的形象。
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We must make the most efficient use of the available financial resources .
我们必须最有效地利用现有财力。
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We must address ourselves to the problem of traffic pollution .
我们必须设法解决交通污染问题。
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Each of us must take responsibility for our own actions .
我们每个人都必须对自己的行为负责。
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Health care must be at the service of all who need it .
医疗保健机构必须为所有需要者提供服务。
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Schools must meet the challenge of new technology .
学校必须迎接新技术的挑战。
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The project must be completed within a specific time span .
这项工程必须在规定期限内完成。
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Students must have access to good resources .
学生必须有机会使用好的资源。
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There must be a way round the problem .
这个问题一定有办法解决。
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I must go home and get tea for the kids .
我得回家为孩子们准备茶点。
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I must go home and get the kids their tea .
我得回家为孩子们准备茶点。
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Every file on the same disk must have a different name .
同一磁盘上的每一个文件都必须有不同的文件名。
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Somehow or other I must get a new job .
我必须想方设法找份新工作。
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' We must find him , ' she said urgently .
“我们必须找到他。”她急切地说。
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All students without exception must take the English examination .
所有学生都必须参加英语考试，无一例外。
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All the children must learn a foreign language .
所有的儿童必须学一门外语。
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You must know him ─ he 's an institution around here !
你一定认识他——他是这一带的知名人士！
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This behaviour must stop ─ do I make myself clear ?
这种行为必须停止——我讲清楚了吧？
指因法律、义务、形势等关系而不得不做某事，通常用被动语态。
He was obliged to tell the truth.
他被迫讲出了实情。
Poverty obliged her to live a hard life.
贫困迫使她过艰苦的生活。
The law obliges parents to send their children to school.
法律强制父母送子女入学。
指客观情况迫使某人做某事，侧重于客观上的“必须”。
Did she have to pay a fine?
她非得交罚款吗？
I have to admit that the idea of marriage scares me.
我不得不承认，一想到结婚我就害怕。
指因需要、命令或强制而必得做某事，侧重于主观上的“必须”。
We must take action at once.
我们必须立即采取行动。
I think we must reduce our prices or spend more money on advertising.
我认为我们必须降低价格，或者是在广告上花更多的钱。
- 习语