But counterfeit drugs may contain too much, too little or none of the active ingredients of the real thing.

VOA: special.2010.02.22

And with respect to securities selection, you want to consider your skills and you want to consider the efficiency of markets when you're making your decisions as to whether or not to pursue passive management or active management.

证券选择方面,要考虑自身能力与市场有效性,从而决定,是采用被动型管理,还是主动型管理

耶鲁公开课 - 金融市场课程节选

So that he knew a lot about music, but he never performed or never was active as a musician.

他对音乐很懂，但他从来没有,表演过或者成为一个积极的音乐人。

麻省理工公开课 - 电影哲学课程节选

Young people who said they were active in religious groups, sports or other interests were less likely to discuss risky behaviors.

VOA: special.2009.02.18

There has been a strong move to change that relationship, with the students become far more active, and active participated in his or her own learning.

要改变这种教学的关系,让学生变得更积极，参与到自己的学习过程中。

麻省理工公开课 - 媒体、教育、市场课程节选

Young people who said they were active in religious groups,sports or had other interests were less likely to discuss risky behaviors.

VOA: special.2009.02.03

His curious fancy is more active than his desire. Or, you might say, his desire to know is more active than his desire to love.

他好奇的本质比欲望更强烈，或许你们会说，他求知的欲望比爱的欲望强烈。

耶鲁公开课 - 1945年后的美国小说课程节选

But it would keep the Confederate armies active for a few more weeks or months.

VOA: special.2009.12.17

For instance, bronze is allocated to different places for the manufacture of arrowheads or swords, with a note telling how many smiths in each place are active and how many are not.

举个例子,青铜分配到,不同地方用于制造箭头,或者刀剑,然而每个地方能劳动,和不能劳动的铁匠数目都有记录

耶鲁公开课 - 古希腊历史简介课程节选

He spoke to us about the finding. "It really means that the planet is more active than we thought,and more active and that can be geologically or maybe even biologically."

VOA: special.2009.12.30

And this just is another list, I mainly wanted you to have it in your notes of diseases that are important around the world, for which there are very active programs to develop either vaccines or more effective vaccines.

这是另一个表,我希望你们做笔记时把它加到,世界上这些严重的传染疾病上,因为现在有一些项目致力于开发,针对这些疾病的疫苗或者改进式疫苗

耶鲁公开课 - 生物医学工程探索课程节选

"Is it calmer now? Are people a little less active than they were a few months ago or about a year ago?

VOA: standard.2010.06.15

If you want to know which part of your brain is responsible for language, you could put somebody into a scanner and have them exposed to language or do a linguistic task or talk or something and then see what parts of their brain are active.

如果你想知道大脑的哪个区域,负责语言功能,你可以对被试进行扫描,让他们暴露在语言环境中,或是进行语言学任务,或者聊天,然后观察他们的哪些脑区处于活跃状态

耶鲁公开课 - 心理学导论课程节选

"Because there are only a couple of previous records of eruption at this particular volcano, it is difficult to judge either how long the activity will go on there, or how long the volcano might then be dormant before it goes active again."

VOA: standard.2010.04.15

As a matter of fact,if things were perfectly efficiently priced, there wouldn't be any opportunity to generate excess returns and if you make active bets--if you make bets against the market -then whether you win or lose has to do with luck.

事实上,如果资产都是有效定价的,那么根本不可能获得任何超额收益,如果你主动一搏,要从市场中获利,那么无论得失都只能靠运气了

耶鲁公开课 - 金融市场课程节选

I don't think that's a very good reason because you choose to- either way you have to choose who dies because you either choose to turn and kill the person, which is an act of conscious thought to turn, or you choose to push the fat man over which is also an active, conscious action.

我认为这不是一个很好的理由,因为不论哪种情况，你都得选择让谁死,或者你是选择转弯撞死一名工人，这种转弯就是种有意识的行为，或者你是选择把胖子推下去,这同样是一种主动的，有意识的行为。

耶鲁公开课 - 公正课程节选