Bacterial cells are small, one to two microns in diameter and this shows a picture of a common bacterium called E. Coli.

细菌细胞很小,直径只有一到两个微米,这张图片是一种常见细菌,大肠杆菌

耶鲁公开课 - 生物医学工程探索课程节选

I ended with this picture that shows you a little bit about control of gene expression.

我用这幅图结束了上一节课,图上讲了一些关于基因表达调控的内容

耶鲁公开课 - 生物医学工程探索课程节选

It's - this picture on the bottom shows the cell stuck to plastic.

如图所示,细胞紧紧地贴在塑料片上

耶鲁公开课 - 生物医学工程探索课程节选

He says that and then he shows an even more detailed picture, but what I want to show you on this slide is just the simple part of it.

他虽这么说却居然,拿出了一张甚至更复杂的图片,但我只想告诉你们,这张幻灯片上很简单的一部分

耶鲁公开课 - 生物医学工程探索课程节选

That's what this picture on the bottom shows you here.

如底下这幅图所示

耶鲁公开课 - 生物医学工程探索课程节选