doctor

If your fever doesn't go down by tomorrow, you should see a doctor.

(Chinese) 如果你的烧到明天还不退，你就应该去看医生。

She has wanted to become a heart doctor ever since she was a little child.

(Chinese) 她从小就想成为一名心脏科医生。

Professor Wang is a Doctor of Philosophy in Ancient History.

(Chinese) 王教授是古代史哲学博士。

After five years of hard research, he finally earned the title of Doctor.

(Chinese) 经过五年的艰苦研究，他终于获得了博士头衔。