" Yes. But you began that proceeding—by breaking a promise."

“对。不过，这个过程是你开始的——你没有遵守诺言。”

She broke a promise to her daughter and walked out on her family.

她违背了对女儿的承诺，离开了她的家人。

" To back out of" something is to break a promise, to renege on a promise or commitment.

“退出”某事就是违背诺言，背弃诺言或承诺。

In 2012 Nick Clegg, the Liberal Democrat leader, explained in a short film why he had broken a promise to vote against raising university tuition fees.

2012年，自民党领导人尼克·克莱格在一部短片中解释为什么他违背投票反对增加大学学费的承诺。