I should be able to do nice bell-shaped curves, but it's harder than it looks standing up here; so that's your bell-shaped curve.

我还是挺擅长画钟型曲线的,但站着画真的不太容易,这就是钟型曲线

耶鲁公开课 - 金融市场课程节选

I've shown the differences here in terms of shape, these are shaped liked octagons and these are shaped like squares, but if I looked at these cells, what would I find that's really different about them?

我展示了一些细胞形态上的差异,这些细胞是八角形的,这些是方形的,但如果仔细观察这些细胞,我能找到一些本质上的差异吗

耶鲁公开课 - 生物医学工程探索课程节选