And, furthermore, to put the background in front, 1s2 2s2 2p3 let's do the electronic structure. It is 1s2, 2s2, 2p3.

此外，把他的背景知识都翻出来，我们分析一下电子结构，这是。

麻省理工公开课 - 固态化学导论课程节选

And if you've forgotten about proteins and what their structure is you can go to Chapter 4 and read sort of a brief review of protein biochemistry.

如果你们忘记了蛋白质及结构的相关知识,就去读第四章,关于蛋白质生物化学的简短综述

耶鲁公开课 - 生物医学工程探索课程节选