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

VOA: special.2009.08.01

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

the Ax prime will drop off.

x 就被消去了

耶鲁公开课 - 基础物理课程节选

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

She says,'we went to visit, but have not been able to see our relatives.' She said relatives had only been allowed to drop off food at the gate and leave.

VOA: standard.2009.05.25