I have a toothache.

牙痛的时候令人不想开口说话，不想吃东西，很不自在，你可告诉别人：I have a toothache. (我现在牙痛)。牙齿的毛病有很多， 例如：I have a cavity(我有蛀牙) 、 I have sensitive teeth that hurt easily (我的牙齿很敏感，容易受损)、 I need to have a tooth pulled /extracted (我需要拔牙)等。

对 话

Kate: Why re you pulling such strange faces?

Ronald: I'm in a lot of pain. I have a toothache.

Kate: Well stop putting up with the pain and go see a dentist.

Ronald: The pain of getting his bill will be far greater than this. Here, hold this string. (Ronald has string tied to his tooth to do a DIY extraction) I'll show those over-priced quacks.

凯伊：为什么你的样子那么古怪？

罗讷德：我很痛苦，我的牙很痛。

凯伊：那么别再撑了，去看牙医吧。

罗讷德：收到他的账单比现在更痛苦，来吧，拿着绳子(自行拔牙)，我要叫那些收费高得离谱的庸医看看我的手段。

罗讷德牙痛，凯伊劝他说：Stop putting up with the pain and go see a dentist.（别再撑了，去看牙医吧）。但罗讷德决定自己脱牙：I'll show those over-priced quacks.（叫那些收费高得离谱的庸医看看我的手段）。

I'll show you/him等是成语，直译是‘我要向你/他证明’，有‘要证明自己并非那么不济’含义，例如：Do you think I won't be able to take revenge? I'll show you!（你以为我没法报复？你等着瞧吧！）

Put up with是动词词组(phrasal verb)，意思是‘忍受’，例如：He had to put up with an overbearing boss（他那个上司很横蛮，他也只好忍着）。‘忍痛’可以叫做to put up with/endure/bear pain，例如：The pain he was subjected to was more than a man could put up with/endure/bear（加在他身上的痛苦，非人所能承受）。

留意go see a dentist这说法。Go、come二字之后，可用‘to+原形动词(infinitive)’，例如：(1) I went to see a dentist（我去看牙医）。(2) Tom came to talk to me about the matter（汤姆来找我谈这件事）。随便一点的说法，则是用‘and+动词’取代‘to+原形动词’，例如：(1) I went and saw a dentist。(2) Tom came and talked to me about the matter。美式英文有时更会把and或to略去，以go或come和另一动词连用，例如：(1) I will go see a dentist。(2) Come talk to me about the matter。但这个说法的go、come必须用原形(infinitive)，不可说I went see the dentist等等.