I've got to make a date with my dentist. I've got a bad toothache.

我得和牙科大夫预约看病了。我牙疼得厉害。

youdao

I've got a really bad toothache. I've got to make an appointment with my dentist.

我牙疼死了，得跟我的牙医预约一下去看看。

youdao