美国孩子在体育上拼的太过头了，不值得追风模仿。只想要锻炼身体的话，不需要太拼命。

the National Youth Sports Safety Foundation estimated last year that 3 million teeth would be lost during youth sporting activities during the year.

这只是牙。

其实反对的声音一直有，小不点的孩子就开始一周天天被推的团团转，练完这场赶下场。也过这些也许不够主流吧，至少没流到子坦。