self y Notice what I also do here, I create self dot y, give it a value, and then, oh cool, I can also set up what's the radius and angle for this point, by just doing a little bit of work.

我创建了，然后给它赋值，然后，噢太酷了，通过做一点额外的工作,就可以得到点的半径和角度了，好，实际上如果。

麻省理工公开课 - 计算机科学及编程导论课程节选

But my boss called me in on the weekend to do some extra work.

但是我老板在周末把我叫去，做一些额外的工作。

The thing is 实战 - SpeakingMax英语口语达人