As we increase the voltage, we get to a critical value at which it is possible to actually draw electrons across the gap.

当我们增加气压时，我们得到了一个临界值，在这个临界值上,将电子吸引过来是完全有可能的。

麻省理工公开课 - 固态化学导论课程节选

But then I also talk about tolerance, which was a critical value for us becoming a nation with all the different religious groups learning how to live together.

但是我还想谈谈宽容，这一点对我们至关重要,有助于各个不同宗教信仰团体紧密团结,学会共同生活。

普林斯顿公开课 - 国际座谈会课程节选

Now, the critical thing to understand about a corporation is that in order to value a share in a corporation you absolutely have to know the number of shares outstanding.

理解这类公司的关键在于,要衡量一家公司股票的价值,你必须清楚总共发行的股票数量

耶鲁公开课 - 金融市场课程节选

The critical thing is the loan-to-value ratio, or LTV.

其中关键的一点是贷款价值比率,或者简称LTV

耶鲁公开课 - 金融市场课程节选