嗯，也是从奥运会开始关注的。正常应该是小臂与大臂保持一条一线、垂直上抛，而小郑的胳膊肘是弯的，抛球时向内转圈

来源: NF2 于 2024-09-02 14:05:08 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.