It's not infrequent that i'll get one or even two people raising their hand that they took Economics 252 from me.

有的时候会有一两个人,举起手说,他们上过我的经济学252号课

耶鲁公开课 - 金融市场课程节选

So I want to welcome you, I really want to invite you, whenever you've got some reactions to the things that I'm saying, raise your hand, I'll call on you.

所以我欢迎你，我真的邀请你，无论什么时候,你对我所说的有回应，举起你的手，我会叫你的。

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