there are many genes that are already expressed and presented in this dimpling and thickening of the outer layer.

在外胚层的凹陷和增厚过程中,表达了很多基因。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Not the longest book you will ever read, but long enough.

这也许非你所读过最厚重的书，但够厚了。

耶鲁公开课 - 政治哲学导论课程节选

So, if you bought a newspaper it would be only two sheets because it was so expensive-- not all the thick paper that we have today-- and it would cost something like $10 or $20 in today's prices.

你要是在当时买报纸的话,恐怕只有两页纸,因为纸实在是太贵了-,而且我们现在用的那种厚纸很少见-,按照今天的物价水平,大概需要10至20美元。

耶鲁公开课 - 金融市场课程节选