Mr. Crisp asks, "Is this your ball, Tom?"
克里斯普先生问:“汤姆,这是你的球吗?”
Johnny, you know that playing with your ball at home is not allowed.
约翰尼,你知道在家里打球是不允许的。
''I'll have you know I've been STANDING on your ball for the last five minutes!''
约恩说,“我来告诉你吧,在过去的五分钟内,我一直都站在你的球上!”
VOA: standard.other
It's not going to be a backscatter event if your ping-pong ball hits the frame or these strings, or the top part.
打到原子核了就是背散射,如果打到框上。
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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