If a drafted man could not do either thing, then he must join the army or be shot as a deserter.

VOA: special.2009.10.29

If the atom is fixed mass, the electron is tiny, It must be the positives have all the mass.

如果是原子质量一定，电子很小，带正电荷的部分几乎占据了全部质量。

麻省理工公开课 - 固态化学导论课程节选

For example, if you are running behind schedule and you really must be moving to your next appointment,

例如，如果你已经比计划的时间晚了，不得不马上赶赴下一场约会的时候，

have to 课堂 - SpeakingMax英语口语达人

If the tests show a high possibility, a married couple must decide if they want to risk a pregnancy.

VOA: special.2010.03.23

And if it is going to be a standing wave then this must be an integral number of wavelengths.

如果这有个驻波的话,那么周长就是个整数。

麻省理工公开课 - 固态化学导论课程节选

Jurors must find a defendant not guilty even if they are not completely sure the person is innocent of any crime.

VOA: special.2009.08.31

That is to say, if something causes literature, there must be some sort of authority behind it and therefore we find ourselves asking, "What is an author?"

即是说，如果文学有缘由的，它的背后一定存在作者,所以我们会问，“作者是谁？“

耶鲁公开课 - 文学理论导论课程节选

But if you want to visit the newly opened Statue of Liberty, you must do it within the next two years.

VOA: special.2009.06.29

We look at what emails you reply to if you reply in theory that suggests this user must care about whoever sent this email or the topic they are in.

我们看看哪些邮件要回复,如果你回复了,理论上来说这表明了用户一定很关心,发件人以及邮件的主题。

哈佛公开课 - 计算机科学课程节选

The Securities and Exchange Commission says a private company must report financial information if it has five hundred shareholders or more.

VOA: special.2011.01.07

If you want to say,no,no,no,those memories are illusions, it must be because you don't think he's really Napoleon.

假如你说，不，那些记忆都是错觉，那是因为你不认为他是真的拿破仑。

耶鲁公开课 - 死亡课程节选

If you start a path of one color you must continue to use only toe and handholds marked with that color.

VOA: special.2009.12.09

At the end of the day, better that five should live even if one must die.

最终结论：，牺牲一人保全五人，是更好的选择。

耶鲁公开课 - 公正课程节选

The issues must be treated carefully, or they will be difficult and painful if an elected official has to deal with them.

VOA: special.2009.12.06

It must not be taken even if it's for the purposes of nourishment.

即使为了果腹，也不能引用。

耶鲁公开课 - 旧约导论课程节选

She often said: "You must never so much as think if you like it or not, if it is bearable or not.

VOA: special.2009.07.26

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

If you want to have power in this society you must master the three literacies this is a class about power,your power."

VOA: special.2009.04.27

Well, the company--the board of directors-- decides if and when to pay dividends to the shareholders and then the law of the state would say that they must treat them all equally.

公司,董事会,会决定何时向股东支付股利,州法规定,股东利益均等

耶鲁公开课 - 金融市场课程节选

In the same way, evidence must be designed perfectly if it is to frame an innocent person to make him or her seem guilty.

VOA: special.2010.02.21

For one thing, one theory is that babies hear other babies cry, because babies are so stupid they think they themselves are crying; if they're crying they must be in some sort of pain so they cry some more."

例如，有理论说婴儿听到别的婴儿哭，因为婴儿都笨得要命,他们以为是自己在哭;,他们会以为自己哭了，那一定是痛了,所以他们就哭得更厉害”

耶鲁公开课 - 心理学导论课程节选

If it cannot live in the hearts of its people, then it must one day die."

VOA: special.2009.07.16

Does he hold it out as a real possibility ? or must it be considered a failure in some way or that if the dialogue does end in failure ? what can we learn from that?

他是否坚持真有可能性,或那必需被多少视为是一项失败,如果对话以失败结束,我们又能从中学到什么？

耶鲁公开课 - 政治哲学导论课程节选

Chris Howson says premature births must be reduced if that goal is to be met.

VOA: special.2009.10.19

And what de Broglie said is well, if it's true that light, which has a wavelength can have momentum, then it must also be true that matter, which has momentum, also has a wavelength.

德布罗意说的是，如果光具有波长和动量是对的,那么物质具有动量和波长,也一定是对的。

麻省理工公开课 - 化学原理课程节选

Students must re-apply after a year if they want to continue an off-campus job.

VOA: special.2009.01.29

And so tradition just said, "Well if there are three gifts,there must be three kings."

所以传说在流传过程中，人们认为，“有三样礼物，那必定有三位国王“

耶鲁公开课 - 新约课程节选

If you are looking for a job, you must prepare your rsum.

VOA: special.2010.04.18

The notion is, if there's something foreign that's being produced inside this cell, then that cell must have been corrupted in some way and it has to be gotten rid of.

免疫反应的规矩是这样的,如果某些外源物在你细胞内产生,那说明这个细胞的某些地方,已经被损害了所以必须被清除掉

耶鲁公开课 - 生物医学工程探索课程节选

Remember, "is it okay" must always be followed with either "if" or "to".

记住，使用“is it okay”时后面一定要跟上 "if" 或者"to"。

Is it okay 课堂 - SpeakingMax英语口语达人