Except for electromagnetism, the basics of mechanics, which is the motion of Billiard balls and trucks and marbles and whatnot, was set up by Newton.

除电磁学外,力学的基础,也就是台球,卡车,弹球以及其它小玩意儿的运动原理,都是由牛顿建立起来的

耶鲁公开课 - 基础物理课程节选

it's just fun to kind of play around.

玩弄这些小玩意儿，我觉得很有意思。

时尚让人兴奋 - SpeakingMax英语口语达人