Yeah, we're friends so I thought it would be OK.

——是啊，我想我们是朋友嘛，应该没什么问题吧。

youdao

OK, so, yeah that's a strong suggestion that if you've forgotten everything about single variable calculus, now would be a good time to actually brush up on integrals.

我强烈建议,如果你忘记了单变量积分的知识，现在就是一个很好的复习机会。

youdao

No, that's ok. It's messy to drink tea over pictures. So what photo is that? Oh, yeah, I remember this.

没关系。看照片的时候喝茶非常容易弄得一团糟。那是哪张照片？哦，是的，我记得这张照片。

youdao

Ok, so yeah, I first specialized in France in Aviation Engineering,

我先是在法国学的航空工程，

来美国的理由 - SpeakingMax英语口语达人