You' d better go to the dentist's now.

你最好现在就去看牙医。

I have to go to the dentist first!

我得先去看牙医！

I have to go to the dentist this morning.

今天早上我必须去看牙医。

I have toothache and I have to go to the dentist.

我牙痛，我必须去看牙医。

First I have to go to the doctor and then I have to get my teeth checked by the dentist.

首先我必须去看医生，然后我必须让牙医检查我的牙齿。

I go to the dentist once a year.

我一年看一次牙医。

Linda: I will go to the dentist more often now.

琳达：我现在会比较常去看牙医。

Linda: I never go to the dentist. I'm too scared!

琳达：我没去看过牙医。我很害怕！

You should go to the dentist to pull out this tooth.

你应该去看牙医，并把牙拔了。

That should stop the pain until you go to the dentist.

B 在你去看牙医之前，止痛片会帮你止痛的。