暴走族

zuò zhě bù néng què dìng wèi shén me nǚ hái shòu shāng de bǐ jiào duō kě néng dà bù fen de bào zǒu zú shì nǚ hái ba

作者不能确定为什么女孩受伤的比较多，可能大部分的暴走族是女孩吧。

The authors weren't sure why more girls were injured and speculated that perhaps more girls wear Heelys.