This kind of tobacco is grown extensively in Africa and used extensively in American-style cigarettes that are popular worldwide.

VOA: special.2010.11.17

This is another organic chemistry reagent, it's also used extensively in the pharmaceutical industry.

这也是一个有机化学试剂，而且还在制药业中广泛应用。

麻省理工公开课 - 化学原理课程节选