A majority of those surveyed expect the security situation in their local area to improve in the next year, although in regions where there is major conflict, respondents are less optimistic about future improvements.

VOA: standard.2009.10.27

And one of the things you often hear about in this discussion is about our oceans and about rainforests, and part of the reason why people want to protect those areas is because you find a lot of natural products in those regions.

其中你们会经常听到的一个,就是关于海洋和热带雨林的讨论,人们想保护这些地方的部分原因,就是因为在这些地方,人们可以发现一些天然产物。

麻省理工公开课 - 化学原理课程节选

In some cases that backbone gets methylated and those regions of the DNA that are methylated get treated differently by the cell than unmethylated regions.

一些情况下,主链会甲基化,该甲基化区域的DNA,和未甲基化区域的DNA,会被细胞区别对待

耶鲁公开课 - 生物医学工程探索课程节选