他背弃了诺言，离开了他的妻子。

He reneged on a promise to leave his wife.

《柯林斯英汉双解大词典》

他背弃了自己的诺言。

He receded from his promise.

youdao

即使太阳从西方出来，我也不会背弃我的诺言。

If the sun were to rise in the west, I would not break my word.

youdao

如果太阳从西方出来，我就会背弃我的诺言。

If the sun were to rise in the west, I would break my word.

youdao

如果太阳从西方出来，我就会背弃我的诺言。

If the sun were to rise in the west, I would break my word.

youdao