So, 13 backscattered. TAs, if you can maybe pick up these ping-pong balls for me.

把这些球捡起来，我觉得如果，我摔倒一定很搞笑。

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And you know, that's tough for them but you know what, if you fall down,

对他们来说很难，但是如果你摔倒了，

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