我今天打乒乓球。
她喜欢打乒乓球。
他打乒乓球吗?
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。
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。
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。
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