你是先起跳再发球的？助推力和跳还是很有区别滴。。。

来源: 云燕假日于 2014-09-03 10:58:51 [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.