这是升级了的单臂训练，反向的手臂没有放在前面用以平衡。

This is advance single arm drill where the opposite arm is not balancing in front.

youdao

这是升级了的单臂训练，反向的手臂没有放在前面用以平衡。

This is advance single arm drill where the opposite arm is not balancing in front.

youdao