If you make a promise, you should keep it.

如果你许下一个诺言，你就应该遵守它。

《柯林斯英汉双解大词典》

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It's also popular to make a promise in the New Year.

也很流行在新年里许下承诺。

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That is a promise that I make to you,". The president did not specifically mention Afghanistan in his talk to the troops, but he is expected to send thousands more service members to fight there.

VOA: standard.2009.11.13

What if he died before he was able to fulfill his promise as a poet, ? before he could publish or make public his talent?

要是他还没能实现成为诗人的愿望，还没能彰显自己的才华就死了呢？

耶鲁公开课 - 弥尔顿课程节选

And as you read the story, remember its larger context: God's promise to make Abraham the father of a great people through his son, Isaac.

当阅读这个故事时，记住它的大框架：上帝许诺,亚伯拉罕通过他的儿子以撒成为大国之父。

耶鲁公开课 - 旧约导论课程节选

We are building a bigger, better West Ham and when we make a promise, we honour it.

BBC: West Ham reject bid from Tottenham for Scott Parker

Three years ago, I came here to this campus to make a promise.

WHITEHOUSE: President Obama Speaks about Health Reform in Iowa City

Make a promise to avoid the mountain of uninformed decisions next year, and your wallet and portfolio will thank you.

FORBES: Want To Make Good Decisions? Avoid Mount Stupid