Re: [問題] 關於增加臂力

[cz (i might be wrong)]

http://www.baseballtaiwan.net/

http://www.baseballtaiwan.net/libros/coachingytraining/fitpixupperarm.htm
http://www.baseballtaiwan.net/libros/coachingytraining/fitPixforearm.htm

參考一下

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