It is still worse among nations. Ambassador Neumann, who has just published a memoir of his tenure in Afghanistan, says there are different kinds of corruption and that at least some lower level corruption is to be expected.

VOA: standard.2009.11.17

I want to look at a slightly higher level of magnification now and think about different kinds of cellular communication.

我现在想讲一些较高水平的放大机制,并思考不同种类的细胞通讯

耶鲁公开课 - 生物医学工程探索课程节选

We'll talk about cells and how they work, how cells in different parts of the body are different, why, and how they contribute to tissues at a very sort of simple level so that you can understand this as we start thinking about using cells for engineering purposes.

我们将会谈论细胞,它们如何工作,身体不同的部位细胞有怎样的不同,为什么它们有所不同,以及这些细胞如何,以十分简单的方式形成组织,这样当我们开始考虑用细胞,来满足工程目的时,你会更容易理解

耶鲁公开课 - 生物医学工程探索课程节选