We have 266, as some of you might know who saw me counting ping-pong balls the other day in office hours.

看到了这些发泡胶球事实上,可以当作单层金原子核,我们有266个乒乓球。

麻省理工公开课 - 化学原理课程节选

And again, you don't teach an animal to play Ping-Pong by waiting for it to play Ping-Pong and then rewarding it.

同样，你并不能通过等待动物打乒乓球,然后给其奖励,来使动物学会打乒乓球。

耶鲁公开课 - 心理学导论课程节选

So, it'll be considered a backscatter event if your ping-pong ball hits one of the nuclei.

什么情况是背散射,如果你们的乒乓球。

麻省理工公开课 - 化学原理课程节选

All right. So, we'll come around and get ping-pong balls to the rest of you.

还有什么问题吗？如果你们,还没有乒乓球的话请举手，还有问题吗？

麻省理工公开课 - 化学原理课程节选

More recreational, Skinner was fond of teaching animals to play Ping-Pong.

更好玩的是，斯金纳喜欢教动物们打乒乓球。

耶鲁公开课 - 心理学导论课程节选

PROFESSOR: So, as you're getting your ping-pong balls -- do not throw them yet.

如果你觉得，你的准心很好的话，你们现在都拿到乒乓球。

麻省理工公开课 - 化学原理课程节选

We have 266 ping-pong balls, and we need someone, hopefully you, to be some radioactive material that are going to be emitting these ping-pong balls. And when the time comes, in just a minute, I'll ask the TAs to come down and hand these out very quickly to you, so we can do this experiment.

你们有些人那天，看到我在办公室数乒乓球，我们需要几个人,希望是你,来作为放射材料，放射这些乒乓球,等会我会让助教,把这些球发给你们。

麻省理工公开课 - 化学原理课程节选