"In the normal flu season, occur in people over 65.

VOA: standard.2010.04.29

Remember that these cells are relatively large compared to bacteria and so diffusion doesn't occur very quickly over this length scale.

要知道这些细胞相对细菌而言,还是比较大的,扩散作用在这种尺度上,发生得不是那么快

耶鲁公开课 - 生物医学工程探索课程节选

They are supposed to take that light out, but maybe by the end of the semester a miracle will occur. So why don't you look over here.

他们应该把灯关掉，但是可能直到期末这个奇迹,才会发生，所以，你们看这边吧。

麻省理工公开课 - 固态化学导论课程节选