来自《耶鲁大学开放课程：心理学导论第13集》

and have good kids besides.

并造就优秀的孩子
Take another case, the so-called cycle of violence.

另举一例即所谓的恶性循环
Yes, it's true.

是的的确
Parents who smack their kids

爱揍孩子的父母与正常父母相比
tend to have statistically more violent kids.

其孩子有可能更具暴力倾向
But maybe the causality goes the other way around.

但有可能这一因果关系反了
Maybe if you have a kid who is a troublemaker

或许是因为你的孩子爱闹事
you're more likely to smack him.

你才更常揍他
Maybe, which seems to be entirely likely,

更有可能的是又或许
the propensity for violence is to some extent heritable.

暴力倾向在某种程度上具有遗传性
And so, even if the kid

那么即使这孩子
was not raised by the smacking parent,

不是被他爱揍人的亲生父母所抚养