A good business plan,he says, must define a problem that the new business will solve.

VOA: special.2009.06.26

But it's a good story, Joule decided that there must be a direct relationship between work and heat.

所以说，这只是一个不错的故事而已，焦耳认为功和热之间,一定具有某种直接的联系。

麻省理工公开课 - 热力学与动力学课程节选

Phantom must be the most iconic Broadway musical ever and it's for a good reason. It's incredible.

歌剧魅影》是百老汇最具代表的一部作品，这是有原因的，真是好看极了。

歌剧魅影 - SpeakingMax英语口语达人

Doctors can collect it with a needle. But people who donate marrow must first have tests to make sure they are a good match for the patient.

VOA: special.2009.12.16

The negative combination effects that I was talking about are certainly there, but on balance I think the human condition for must of us is a good one.

我所说的负面组合影响是肯定有的，但我认为人类的处境对大部分人来说是好的。

耶鲁公开课 - 死亡课程节选

But when they see two guys from the South like Cliff Richey and me, one white and one colored, both sharing a room and being close friends, it must do a little good."

VOA: special.2010.02.07

No matter what its constitution was, no matter how these differed from one another, the idea was that the state has to make good men and that for a city to be good, the men must be good.

不论宪法体制如何,不论世间千变万化,其主旨始终围绕着,政府必须培育良民,而只有公民优秀,才能让城市更加美好

耶鲁公开课 - 古希腊历史简介课程节选

"There are several and the implementation must now be conducted in a good way and we have discussed human rights violations, we have discussed the need for free media and some other things."

VOA: standard.2009.09.12

But Ian Hacking, being a good historian, thought that someone must have had some concept of probability going before even if they didn't quote it as a number the way-- it must have been in their head or in their idea.

但是这位优秀的历史学家伊恩·哈金认为,一定有人在更早时候就用过概率这个概念,即便他们没有用数字来表述,但他们一定有过类似的想法

耶鲁公开课 - 金融市场课程节选

Then your daughter must be a really good singer.

你的女儿唱歌肯定非常好听。

成功加入合唱团 - SpeakingMax英语口语达人