And while we know plenty about the consequences of ageing, we know much less about the exact biological processes involved.

尽管我们很清楚衰老的结果，但是对衰老的生物过程我们所知甚少。

youdao

Recent concern has stimulated enormous research, and we know much more about influenza viruses and pandemics than we did four years ago.

最近的担忧激发了大量研究，我们现在比四年前更加了解流感病毒和大流行问题。

youdao

We don't know much about it.

我们对此了解不多。

youdao

why,when we do not sleep, we do not function well. We just do not know much about sleep at all."

VOA: special.2009.08.26

Also, we need to know how much individual stocks are correlated with rm; we measure that by the regression coefficient.

我们必须清楚,有多少个股与市场总体收益率相关;,我们用回归系数，即β系数来表示。

耶鲁公开课 - 金融市场课程节选

If we want to look going forward at the equity premium, we have to know how much--what's the politics?

如果想预测未来的股权溢价是多少,我们必须知道...政治环境将会如何

耶鲁公开课 - 金融市场课程节选

Take the oceans, about which we know much less than the dark side of the moon.

CNN: Mars can wait. Oceans can't

Now we know much better what is going on.

CNN: Second U.S. death linked to swine flu, officials say

So just talking -- idle conversations in the hallways, I think we know pretty much what you know, because we get it from you guys in the press, about that process.

WHITEHOUSE: Press Briefing