As humans begin to disappear, the vampires must come up with a way to guarantee their future food supply.

VOA: special.2010.01.20

The losing side must come to the winning side and they must ask permission to pick up their dead and bury them.

战败方必须出使战胜方,征求胜方同意,让他们可以,拣回本方死者的尸体进行安葬

耶鲁公开课 - 古希腊历史简介课程节选

And what they could come up with, what they reasoned, is that there must be some intrinsic property within the electron, because we know that this describes the complete energy of the orbital should give us one single frequency.

他们想到着一定和，电子的本征性质有关，因为我们知道这个轨道的,完整描述会给出单一的频率。

麻省理工公开课 - 化学原理课程节选

British Foreign Secretary David Miliband stressed that nice words alone would not do, but real substance must come out of the meeting.

VOA: standard.2009.03.29

However dimly that light came through to you, suffering so acutely from the rough denial of the very existence of American ideals, part of it must have come through American delineation of American characters.

不管遇到何种艰险，哪怕翻山越岭,哪怕趟水滚沙，这些都需要,生动的角色来表现出来。

耶鲁公开课 - 1945年后的美国小说课程节选

He added they must come forward with proposals of their own and be willing to negotiate.

VOA: standard.2009.03.17

One question is this: Is it really true that in order to think about the perfectly straight, I must have somehow, somewhere at some point come up against, had direct knowledge of, the perfectly straight?

一个问题是,难道真的说,为了想象一条完美的直线,我必须,在某处直接碰到,并直接了解一条完美的直线吗

耶鲁公开课 - 死亡课程节选

he says change must come through media,education,business, and government, Many changes are already taking place.

VOA: standard.2010.01.23

He says Iran must come clean about its nuclear program or face the consequences.

VOA: standard.2009.09.25

"So we are really talking about drastic reductions, and they must come from countries which have overused their share of the global atmospheric space, which have a natural debt that must be paid, and I think if countries like India are asking for that, it is not wrong.

VOA: standard.2009.11.27

Safety directions that come with heating equipment must be followed.

VOA: special.2010.02.02

But this plan has also come under criticism. The proposed power plants will burn heavy oil, which must be imported and causes pollution.

VOA: standard.2009.08.28

Shakira must not even come through and sing that song.I am serious. She must not.It sucks."

VOA: standard.2010.05.05

He says he has worn it for two days and figures it must be working because he has not come down with the flu.

VOA: standard.2009.04.30

All 27 EU members must ratify it before it can come into force.

VOA: standard.2009.10.02

But Wednesday,the U.S.Senate joined the House in refusing the president's request for $80 million to close Guantanamo, saying he must first come up with a concrete plan to deal with the remaining 240 detainees.

VOA: standard.2009.05.21

On Tuesday,Geithner told Congress that the government must have the authority to seize non-bank entities, arguing that massive destabilizing dangers can come from financial institutions - a lesson learned from the rescue of American International Group,or AIG, a giant insurer that received a $180 billion taxpayer bailout.

VOA: standard.2009.03.25