But you must be careful. It is easy to get lost in the waves of moving sand especially during sandstorms.

VOA: special.2010.01.04

He stuttered and fluttered his hands and said, "Ah, ah, you must listen to, hear." We listened all ears, but he forgot what he wanted to say. "Really, listen. Ahem. Look.

两只手交握着说：,“嗯--嗯--你们一定要听我说“,我们听着，可是他忘了他想说什么“真的听我说--嗯，你瞧。

耶鲁公开课 - 1945年后的美国小说课程节选

but you have a prior engagement and you really must be going, you can say,

但是你已有约在先，你真的必须走了，你可以说，

I wish 课堂 - SpeakingMax英语口语达人

"But you must never tell anyone I told you this."

VOA: special.2009.12.26

There must have been some guys like that but you just don't hear about those fellows.

也许有这样的人,但他们是默默无闻的士兵甲

耶鲁公开课 - 古希腊历史简介课程节选

"That is true," I said, "but you must be careful."

VOA: special.2009.02.07

But you must be here for the final.

但是你们必须来这参加期末考试。

麻省理工公开课 - 固态化学导论课程节选

"But I must go now.Thank you."

VOA: special.2010.05.15

That must be an interesting story, but I just have it here, and I think the poem tells you something about engineering if you go through it - and the problems of engineering.

这一定是个有趣的故事,我就这么一讲,我想这首民谣告诉了我们,关于工程的一些东西,如果做工程的话,关于工程的一些问题

耶鲁公开课 - 生物医学工程探索课程节选

You must have let your phone dieor something. I'm not in Forks, but everything's okay,and I'll explain it later.

VOA: standard.other

.. But McCain is, McCain wants to increase... What you are saying effectively is the next president must raise taxes in a massive way Because you are saying you can only cut taxes if you cut spending.

然而麦凯恩想要增加。,那照你的意思,下届政府必须大幅增税了，毫无悬念,因为你说一旦减税,就必须跟着精简开支。

斯坦福公开课 - 经济学课程节选

Because I stand up here and I talk about the one or more than one thing I know about and so it's easy to infer that I must know a lot but in fact by the time this semester ends I will have tell you told you everything I know.

因为我站在讲台上,我给你们讲我知道的知识,所以你们很轻易就推断出我一定懂很多,但其实到了学期末，我要告诉你们,我会的都已经教给你们了。

耶鲁公开课 - 心理学导论课程节选

He also mentioned a poemby Rudyard Kipling called If. I didn't recognize what he was referring to immediately but I looked it up and it's a famous poem that you must have seen written in 1910 an inspirational poem.

他同时也提到了拉迪亚德？吉卜林的一首诗歌,名字叫做《如果》，我当时并没有迅速反应出,他到底指的是哪首诗，但是之后我查了一下发现,它是一首你肯定见过的著名的诗歌,写于1910年，一首启发性的诗。

耶鲁公开课 - 金融市场课程节选

But you must look at the context,

但是你也必须结合语境来看，

Do you ever课堂 - SpeakingMax英语口语达人

You can also use a "must" pattern when you're not talking about a person but you're talking about a situation.

当你不在谈论人物，而是在谈论情况的时候，你也可以用“must”句型。

Must 课堂 - SpeakingMax英语口语达人

He replied, "Jacob." Said he, "Your name shall no longer be Jacob, but Israel, for you have striven with God and men, and have prevailed." Jacob asked, "Pray tell me your name." But he said, "You must not ask my name!"

答，“我名叫雅各，“那人说，“你的名不要再叫雅各,要叫以色列，因为你与神与人较力都得了胜，“雅各问,“请将你的名告诉我，“那人却说，“何必问我的名，“

耶鲁公开课 - 旧约导论课程节选

And so the big issue is -- this is what you must never do, but this is what you got to do if your phalanx is broken.

所以现在的大问题是,这也许是你在战场上永远不能做的事,但你在方阵被打散时不得不这么干

耶鲁公开课 - 古希腊历史简介课程节选

Now, I don't know how far back it goes but it must be that in ancient times some people would say, all right you're going to be doing more work or you're contributing more to this enterprise, we'll give you a bigger share of the profits.

我不知道这能追溯到什么时候,但在古时候肯定有人说,好吧,你比别人干得多,你对公司的贡献更大,我们会把收入的大头给你

耶鲁公开课 - 金融市场课程节选