I would say, people certainly have their views. But I think... You should start.

我会说，每个人都有他们的看法。,你应该先开始。

普林斯顿公开课 - 人性课程节选

I know to be a judge, you can't just become a judge, you usually have to practice as a lawyer first.

就我所知，你不能一开始就成为法官，你必须先成为一名律师。

为了更美好的世界 - SpeakingMax英语口语达人

So instead you'd have to maybe if you start with wavelength, go over there, and then figure out velocity and do something more like kinetic energy equals 1/2 n b squared to get there.

这时你要先从波长开始，到这，然后算出速度,然后像动能等于1/2nb平方得到这。

麻省理工公开课 - 化学原理课程节选