Here he is in his paper and says at that time I decided that it was advantageous to find a more general system of the elements and here is my attempt.

他在论文中说，当时,我觉得发现更多,的元素的通用系统是很有用的,这就是我的计划。

麻省理工公开课 - 固态化学导论课程节选

but also like the university system in general like, here you're living in a university with people.

而且由于大学里总体的制度规定，你在这里能够真正地与人交流。

来自西班牙 - SpeakingMax英语口语达人

We're going to take these general topics and talk about how they work in the nervous system and the immune system next time.

在下节课我会讲这些内容以及,配体-受体系统在神经系统和,免疫系统中的作用原理

耶鲁公开课 - 生物医学工程探索课程节选

The food system in general is horrific,

现在的食品体系简直太可怕了，

要学习环境法 - SpeakingMax英语口语达人

There are two general classes of molecules that are produced by the endocrine system.

内分泌系统产生的分子通常有两类

耶鲁公开课 - 生物医学工程探索课程节选