"Are there people in the world with the foolishness to die because leaves drop off a vine?

VOA: special.2009.08.01

Because it has to drop off precipitously.

因为它必须陡然减少。

麻省理工公开课 - 固态化学导论课程节选

This pink line has to drop off from a all the way to c.

这条粉色的线要经过纵坐标a-c

耶鲁公开课 - 博弈论课程节选

By 2012,they hope to set up a network of pick-up and drop-off locations for rented bicycles throughout New York City.

VOA: standard.2010.01.31

How far along do I have to go drop off a - c when I have slope -2b?

斜率-2b的线还要经过哪个横坐标呢

耶鲁公开课 - 博弈论课程节选

We've seen a drop off of the amount of money that we have to spend when we are on tour."

VOA: standard.2010.02.21

For many years, adventure writer Peter Heller had nurtured a secret dream: to drop everything and go off to a tropical paradise and learn how to surf.

VOA: standard.2010.08.04