"I think that you're going to see some significant additional sanctions imposed by the international community, assuming that the Iranians don't change course and agree to do the things they signed up to do at the beginning of October,".

VOA: standard.2009.12.12

But I am telling you this after you already signed up for the class so it is too late to leave.

我在你们选了这门课后才挑明,想退课也晚了。

哈佛公开课 - 幸福课课程节选

I want you to understand what you've signed up for.

我希望你们都了解你们都选的是什么课。

麻省理工公开课 - 固态化学导论课程节选

Under an agreement signed by the two sides,a three person independent arbitration panel will be set up to decide whether the Geneva police handled the arrest appropriately.

VOA: standard.2009.08.23

If you want to get those e-mails, you got to sign up for the course because I push a button and it goes to anybody who's signed up there.

如果你想收到邮件的话,你得选我的课,因为我点一下按钮,邮件就发给选课的同学了

耶鲁公开课 - 基础物理课程节选

We have corporate challenges where everybody who has signed up gets put on a team at random, so you get to meet new people and try and succeed.

VOA: standard.2010.07.16

So, it seemed like a good start for me, pre-med/bio, and I signed up for my bio class -- I found out, as Professor Drennen did, that I had to take chemistry as well. I wasn't as upset, I was sort of a neutral chemistry person at this point, but I thought it was pretty smart to get it over with on the first semester, so that's what I did.

一个既在科学上有挑战又能帮助他人的职业，从医学预科或者生物起家-,我参加了生物课，我和Drennen教授一样，我也必须要上化学课，我并没有很不爽,我当时对化学的态度很中立。

麻省理工公开课 - 化学原理课程节选

The Copenhagen conference was to come up with a binding agreement to succeed the 1997 Kyoto Protocol which mandated emissions cuts, but was not signed by some of the world's biggest polluters, including the United States.

VOA: standard.2009.12.08