Suddenly,a wonderful smell in the air made me get up and put out my hands.

VOA: special.2009.11.15

What do you think? Even with these glasses on, I can see no hands up, any suggestions? Somebody help me out.

戴着眼镜我也能看出来没人举手，有想法么？大家来帮帮我吧，你们对这个算法的增长率是怎么认为的？

麻省理工公开课 - 计算机科学及编程导论课程节选

So keep your hands up a second, those people. So let me ask people why?

先别放下手,你们为什么这么选

耶鲁公开课 - 博弈论课程节选