Yes? Yeah, so I'm saying when you fix theta you get only a half plane, not a full plane I mean, it goes all the way up and down, but it doesn't go back to the other side of the z axis. Why?

请说，所以我说当固定θ时,得到的是半平面，而非全平面,它布满z-轴的一侧,但从不延伸到z-轴的另一侧，为什么？

youdao

What seems to be the issue you are having? Please let me know so I can fix it for you. We're here for all of our clients.

似乎是这个问题，你有什么？请让我知道，所以我可以为您解决它。我们在这里为我们的所有客户。

youdao

You don't have to beat around the bush. Just tell me what the problem is so I can fix it.

我希望你说出他的真正意思，不要总是拐弯抹角的。

youdao

So, I don't even have to worry because you're not writing this down, so I can just fix it when I post the notes and no one will ever know, except that this is not OpenCourseWare.

所以我甚至不用担心,因为你们不会把这个写下来，所以我可以在我给出讲义的时候再修改,而且不会有人知道，但除非这不是公开课。

麻省理工公开课 - 化学原理课程节选