How many we'll get the camera on you how many of you chose a number higher than 67?

有多少人,摄像机会转过来对准你们,多少人选了大于67的数

耶鲁公开课 - 博弈论课程节选

Frequencies, how many times you go around, f is revolutions per second It's called the angle of velocity.

频率就是一秒转多少圈,因为 f 是每秒转过的圈数,这就是角速度

耶鲁公开课 - 基础物理课程节选