"牙疼"在英语中是 "toothache",如果你需要表达这个概念,你可以简单地说 "I have a toothache" 或者 "My tooth is hurting",如果疼痛严重,你可能需要看牙医,可以说 "I need to see a dentist because my tooth hurts so much",希望这个答案对你有所帮助!