The insurance company has to have some way of demonstrating its soundness to the public.

保险公司必须通过一些方法,来证明其偿还能力。

耶鲁公开课 - 金融市场课程节选

But if you don't pass AS, then you have to maybe repeat it or you can just maybe go to work.

但是如果你没有通过AS，那么你可能必须重读一次，或者你可以直接去工作。

英国的高考 - SpeakingMax英语口语达人

These are things that must be taken in from the environment because your body cannot manufacture them and they promote specific chemical reactions in the body.

这些都是必须从外界摄取的物质,因为无法通过自身合成,它们能促进体内特定的化学反应

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

They have to learn to interpret sounds in context and sometimes they make mistakes.

他们必须学会通过上下文来判断声音,有时他们会出现错误的情况

耶鲁公开课 - 心理学导论课程节选

One last thing we can think of doing but we have to be a bit careful here, is we can think about changing the payoffs by education.

还有一种方法,但我们必须慎用,就是通过教育来改变收益

耶鲁公开课 - 博弈论课程节选

You have to discount something that's one period in the future by dividing it by 1+r.

你必须把未来一段时间内的资金通过,除以1+r来贴现

耶鲁公开课 - 金融市场课程节选

Now, the polio vaccine that Salk produced was very effective, but it required a fairly large dose of the vaccine and it had to be injected into the arms of children.

索尔克生产的小儿麻痹症疫苗效果显著,但是,该疫苗的单支注射剂量非常大,而且必须通过小孩的手臂进行注射

耶鲁公开课 - 生物医学工程探索课程节选

He will have to do the recruiting of people that come with him on the colony; he will have to do the constitutional discussion and a political discussion to gain the sanction from the mother city to allow him to do everything he knows.

他需要招募很多人手,来帮助他去建立殖民地,他的提案必须通过立宪讨论和政治会议,这样母邦才能许可,他才能建立殖民地

耶鲁公开课 - 古希腊历史简介课程节选

And,so,instead of having where before you had something like one- hundred tolls you had to pay on the Loire River, if you're transporting some goods, they eliminate all those tolls, they try to create uniform weights and measures, and that'll take one-hundred years before that really works.

相对于从前,诸如你想,通过卢瓦尔河运输货物,你必须支付一百元的过路费,他们取消了所有此类收费,他们尝试建立统一的度量单位,这些想法在一百年之后才得以实现

耶鲁公开课 - 1871年后的法国课程节选

Yeah. So I had to take a standardized test called the LSAT

可以。我必须先通过一个标准测试，叫LSAT。

法学院的入学过程 - SpeakingMax英语口语达人

And all of this has to be learned through exposure to language users.

而且所有这些都必须通过,暴露于拥有语言使用者的环境才能习得

耶鲁公开课 - 心理学导论课程节选

All of this has to be learned.

所有这些都必须通过学习而获得

耶鲁公开课 - 心理学导论课程节选

All you need is learning.

必须通过学习而获得。

耶鲁公开课 - 心理学导论课程节选

So imagine the following example, an invader is thinking about invading a country, and there are two ways -- there are two passes if you like -- through which he can lead his army.

想象一下这样的例子,一个侵略者打算入侵一个国家,有两条路,想象成两个关口也行,侵略者必须通过一个才能进入

耶鲁公开课 - 博弈论课程节选