关于你对我未来的职业选择的疑问，我下定决心要做一名口译员。

In regard to your questions about my future career choices, I am determined to be an interpreter.

youdao

她决心要做好。

She was determined to do well.

《牛津词典》

她父母决心要做些什么来帮助这种所有人都容易感染的疾病的受害者。

Her parents were determined to do something to help other victims of this undiscriminating disease.

《柯林斯英汉双解大词典》

By the way, if you think I am judging you, I'm not. I am determined to do better.

不过，如果你认为我在批评你，你就错了，我也已经下了决心要做的更好。

普林斯顿公开课 - 人性课程节选