她觉得她可以使他洗心革面。

She thought she could reform him.

《牛津词典》

他向我保证他将洗心革面，重新做人。

He promised me that he would stand in front of me, a thorough new man.

youdao

他说：“我已经洗心革面，对此我也很惊奇。”

"I'm a reformed character, and nobody is more surprised about that than me, " he says.

youdao