They can pretty much pack it up and go home, because everyone's going to think they're ridiculous, no one will believe what they say, and it's a stupid idea anyway, is basically the gist of this conversation.

他们就可以打包回家了，因为每个人都会认为他们很荒谬，没有人会相信他们的说法，这是个很愚蠢的想法，这就是他们当时谈话的大概意思。

麻省理工公开课 - 化学原理课程节选

I can take a heat pack, like the kind you buy at a pharmacy. Break it up. It gets hot.

买来的热装罐在里面打破,它就变热了。

麻省理工公开课 - 热力学与动力学课程节选