而这是我们做过的最重要的产品。

And this is the most important product we've ever done. '.

youdao

我们做过若干次了，沿着圆，向量场与圆相切。

If you remember what we did several times, well, along the circle that vector field now is tangent to the circle.

youdao

之前我们做过。

And we've done that before.

youdao

Congratulations again to those that did well and let's do what we can to get everybody over to the right of that blue line.

再次鼓励那些取得好成绩的同学,让我们做我们能做的来让每个人,过及格线。

麻省理工公开课 - 固态化学导论课程节选

You know, we've done a bunch of thermochemistry, and we've kind of seen that the energy of mixing, your energetics don't change too much as a function of temperature.

我们做过很多的化学热力学习题，某种程度上我们发现混合的能量，并不随着能量,发生大的改变。

麻省理工公开课 - 热力学与动力学课程节选

I know I've done that in my life and so I think it gives a different perspective on finance.

我就做过这样的事情,我认为,这也给我们提供了审视金融的另一个角度

耶鲁公开课 - 金融市场课程节选