noun 下载 🔗分享 正牙学,齿颚矫正学 A specialty of dentistry concerned with correcting misalignment of teeth. Examples : "My daughter is getting orthodontics to straighten her teeth. " 我女儿正在接受牙齿矫正,把牙齿排列整齐。 medicine anatomy 与AI对话词汇游戏阅读练习