At the trial, Bob proved that the other man caused his own arm injury by pushing Jim while Jim was working with dangerous chemicals.
法庭上,鲍勃证实了那个人是在jim正在试验危险化学物时推搡了jim才弄伤自己的。
So, what does bad technique - pushing your head up with a straightened arm - feel like?
所以你觉得,直臂下压让你的头抬起,这个坏习惯如何呢?
My favorite is swinging the arm to swing the racket, which is the cart pushing the horse.
我最喜欢的一个说法是挥动手臂来挥动球拍,就像是马车在推动马。
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