Poor rotation, low swinging arms and cross-overs are the major causes of shoulder injury.

不好的身体滚动，低摆臂和过中线是造成肩伤的主要原因。

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Poor rotation, low swinging arms and cross-overs are the major causes of shoulder injury.

不好的身体滚动，低摆臂和过中线是造成肩伤的主要原因。

youdao