His body moved and his right hand grabbed the handle of the knife.

VOA: special.2009.07.25

So he grabbed his thermometer, and went and made a couple of measurements and discovered the first law of thermodynamics.

所以他拿来了温度计，进行测量,后来就发现了热力学第一定律。

麻省理工公开课 - 热力学与动力学课程节选

when L.J.choked on a coin. "I grabbed him and pushed his stomach."

VOA: standard.2010.02.23