遵守诺言是一个人诚信的表现。

Keeping one's promise is a sign of integrity.

她从不遵守诺言，这让人很失望。

She never keeps her promise, which is disappointing.

她责备他没有遵守诺言。

She reproaches him for not keeping his promises.

他总是遵守诺言。

He always keeps his promise.

如果你遵守诺言，你会赢得更多的朋友。

If you keep your promise, you will gain more friends.

你必须遵守诺言，否则别人不会再相信你。

You must keep your promise, or others won't trust you again.

作为一个老实人，他总是遵守诺言。

As an honest man, he always keeps his promises.

他和富人争论，希望富人能遵守诺言。

He argued with the rich man, hoping the rich man would keep his promise.

这位本垒手真能遵守诺言吗？

Could the home-run hitter keep his promise?

关键是你得遵守诺言，帮她学习

Your promise to help her with her English.