好啦，这就是我今天做的好事。

Well, that's my good turn for the day.

《牛津词典》

走上舞台后，她开口说：“我知道你们在背后嘲笑我好多年了。今天我有一个很好的机会让你们在我面前笑。这就是我在这里的原因。”

After walking onto the stage, she began to speak, "I know you have been laughing behind my back for years. Today I have a great chance to make you all laugh in front of me. That's why I am here."

youdao

而这就是我今天讲话的主题：对于自己的教育，你们中每一个人的责任。

And that's what I want to focus on today: the responsibility each of you has for your education.

youdao

So here we have an example but I want to go back to the generality and to a bit of formalism.

这就是我们今天的案例了,我还是回头很形式主义地概括一下吧

耶鲁公开课 - 博弈论课程节选

So, what I'm going to do is, I'm going to take that essay the product of censorship, the response to censorship and I'm going to use it to read back into the novel.

那么，我今天要做的就是通过这篇短文,这篇禁令下的产物和对禁令的回应,通过它去重新阅读这篇小说。

耶鲁公开课 - 1945年后的美国小说课程节选

So that's the topic that I'd like to address today.

这就是我今天要解决的问题。

麻省理工公开课 - 热力学与动力学课程节选