答应一件事意味着你要拒绝另一件事情。

Saying yes to one thing means saying no to another.

youdao

在你离开这所房子之前，我一定要你答应，你要让我见她一面：答应也好，拒绝也好，我一定要见她！

Before you leave this house, I must exact a promise from you, that you'll get me an interview with her: consent or refuse, I will see her!

youdao

他坚决拒绝答应写任何新作品。

He refused resolutely to pledge himself to any new thing.

youdao