犯错误

tā fàn cuò wù de bìng gēn zài yú sī xīn tài zhòng

他犯错误的病根在于私心太重。

His error stems from selfishness.

xiǎng bu dào tā nà yàng de rén jìng huì fàn cuò wù

想不到她那样的人竟会犯错误。

I wonder such a woman as she should commit an error.