noun 下载 🔗分享 门牙, 切齿 One of the front teeth of mammals, between the canines. Examples : "The dentist pointed to the small chip on my incisor and said it was from biting my nails. " 牙医指着我门牙上的小缺口说,那是咬指甲造成的。 anatomy body organ physiology animal 与AI对话词汇游戏阅读练习