So, I just wanted to give you an idea of just how small most of these places are as well as indicating sharp departures.

我在这里只是想告诉你们这些城邦有多小,以及城邦之间有多分散

耶鲁公开课 - 古希腊历史简介课程节选

And this just is another list, I mainly wanted you to have it in your notes of diseases that are important around the world, for which there are very active programs to develop either vaccines or more effective vaccines.

这是另一个表,我希望你们做笔记时把它加到,世界上这些严重的传染疾病上,因为现在有一些项目致力于开发,针对这些疾病的疫苗或者改进式疫苗

耶鲁公开课 - 生物医学工程探索课程节选

And also I wanted to mention in terms of checking your Lewis structures, regardless of what they are, you should always go back and I had 10, and then count 2, 4, 6, 8, 10, because you always need to make sure you have the same number of valence electrons that you calculated in your actual structure.

我还想提一点关于检查,你的路易斯结构的建议，不管它们是什么，你总是应该回去检查一下,我有十个，然后数一数，二，四，六，八，十个，因为你总是需要确保实际价电子的数量,与你在结构中算出的数量相等。

麻省理工公开课 - 化学原理课程节选