So at Brown, um, I'd say maybe Asians are fifteen percent, a representative of overpopulation ,

在布朗大学，亚洲人的比例大概是15%，是典型的亚洲人数量过多，

尊重多样化 - SpeakingMax英语口语达人

If X is the number of cells, then the rate of change of X, dX/dt, the rate of change of the cell population, how fast division is taking is proportional to the number of cells I have.

如果X是细胞数目,那么X的改变率就是dX/dt,就是细胞数目的改变率,分裂的速度有多快,和细胞数量呈比例关系

耶鲁公开课 - 生物医学工程探索课程节选