他的语气很坚决，表明不会改变主意。

His ___decisive tone made it clear he wouldn't change his mind.

我们仔细考虑后，决定明年搬去纽约。

After careful consideration, we ___decided to move to New York next year.

在演讲培训后，她的自信心有了明显的提升。

There was a ___decided difference in her confidence after the speech training.