如果你无法履行自己承诺的事情，那就以真诚的态度表达你的情况。

If you are unable to deliver on what you promised, communicate in an honest manner.

youdao

在成熟度等级2，组织级开展工作的能力体现在部门们履行自己承诺的能力。

At Maturity Level 2, an organization's capability for performing work is best characterized by the capability of units to meet commitments.

youdao

他们显然没有履行自己的竞选承诺。

They have signally failed to keep their election promises.

《牛津词典》