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

如果太阳从西方出来，我就会背弃我的诺言。

youdao

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

即使太阳从西方出来，我也不会背弃我的诺言。

youdao

I have promised to take my wife out tonight, and I dare not break my word.

我已答应今晚带妻子出去，因而不敢食言。

youdao