Then I'm going to release these little pegs here and my piston is going to shoot up now p1 because p2 is less than p1.

现在移开插销,活塞就会往上冲,因为p2小于。

麻省理工公开课 - 热力学与动力学课程节选

use the whole body, hormones release, and then your body respond and get stronger.

用全身，分泌激素，然后你的身体会做出反应，会变得强壮。

要拥有好身材 - SpeakingMax英语口语达人