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

And don't ask me, well what about the relative dimension of this?

不要问我，这个的相对尺度是怎样的？

麻省理工公开课 - 固态化学导论课程节选