n.牙痛,牙疼;
例句:
Ben: Because she has a terrible toothache.
本: 因为她牙很痛.
What's the matter? I feel sick. I have a toothache.
你怎么了? 我感觉不舒服. 我牙痛.
(British English)I've got toothache.
我牙疼。