The big Pharma hasn't really done research for years but then he married in the biotech area and therefore biotech companies aren't that well run but they spent a great deal in research for the large molecule drugs.

大型制药企业已经很多年没有做过相关研究,但它却与生物技术领域合作,因此导致众多生物技术公司经业绩下降,但生物技术公司在大分子药物的研究上,却投入了很多。

耶鲁公开课 - 金融市场课程节选

The trouble is, you just don't know when that explosion took place, and since there are several periods in this general area that we're talking about now, in which something big happened, some great change takes place, it turns out different people want to have their explosion at different times.

问题是,你不了解火山爆发的,确切时间以及这种爆发,在这个区域又延续了很多个时期,这些时期发生了许多重大事件和重大变化,结果就是不同人对,火山爆发的时间推测各不相同

耶鲁公开课 - 古希腊历史简介课程节选