许下诺言的时候千万注意，不要许下可以实现的诺言。

When you are making a promise, you'd better promise what can never come true.

有些人所以许下诺言，是为了要享受食言的快感。

Some persons make promises for the pleasure of breaking them. –William hazlitt.

当我们向对方许下诺言时，我们也许太过年轻。

We made a commitment to each other when we were probably too young.

他想起了老人对他说过的话，东西未到手，不应轻易许下诺言。

He remembered what the old man had said about offering something you didn't even have yet.

我在多佛向新罕布什尔州道别。大约九年前，我在多佛许下诺言说，将永远和他们在一起，一直到最后。

I said farewell to New Hampshire in Dover, where almost nine years earlier I had promised to be with them til the last dog dies.