One is that he observed when people were machining cannon barrels, a lot of heat was generated, and there was a lot of work done.

第一种说法说焦耳发现,制作加农炮筒时，会产生大量的热，同时这中间有大量的做功。

麻省理工公开课 - 热力学与动力学课程节选

And then they have like, you can bring your binoculars or the telescope thing where you look through.

你还可以带上你的双筒望远镜，或是使用公园里的单筒望远镜，仔细欣赏风景。

河滨公园 - SpeakingMax英语口语达人