Our temperature probably fluctuates during the day a little bit anyways, it's not very accurate. And similarly, the boiling point, defining that at a 100 degrees Celsius well that depends on the pressure.

这就不太精确,我们的体温一天之中，会有高低的变化，这一定义不够精确,类似的,我们把水的沸点定义为。

麻省理工公开课 - 热力学与动力学课程节选