通过调查发现，大众网球运动中运动者膝关节的损伤比较高。

Through survey, this paper finds out that the injury rate of exerciser's knee is very high in mass tennis sports.

youdao

通过调查发现，大众网球运动中运动者膝关节的损伤比较高。

Through survey, this paper finds out that the injury rate of exerciser's knee is very high in mass tennis sports.

youdao