All right. It's 12:05, so why don't you go ahead and take 10 more seconds on the clicker question today.

好，现在已经，12：05，了，请大家,花十秒钟的时间做一下今天的选择题吧。

麻省理工公开课 - 化学原理课程节选

Okay, I'm going to shout now, Can people still hear me?

好吧,我大声点,大家现在都听的到吗

耶鲁公开课 - 博弈论课程节选