And then we're going to try a demo to see if we can convince ourselves that the kind of calculations we make work out perfectly, and we'll do a test up here about half way through class.

然后我们将会尝试演示去看看,是否可以确信我们能够很好的,做出这个类型的计算，我们将在课程中做一个测试。

麻省理工公开课 - 化学原理课程节选

I'm expecting the value that test to be a Boolean. Followed by a colon.

我希望测试的结果值的类型,是Boolean的，后面是个冒号。

麻省理工公开课 - 计算机科学及编程导论课程节选