牙齿英语是:tooth。发音:英[tu_θ],美[tu_θ]。例句:1、My tooth really hurts.我牙齿特别疼。2、They look like the teeth of some fierce animal.它们看上去像是某种猛兽的牙齿。3、The dentist scaled and polished my teeth.牙医为我刮除牙石,抛光了牙齿。4、Teeth have a hard surface layer called enamel.牙齿有一层叫做釉质的坚硬表层。5、He laughed, revealing a line of white teeth.他笑了起来,露出一排洁白的牙齿。6、Some dinosaurs had only rudimentary teeth.有些恐龙只有未充分长成的牙齿。7、My tooth is hurting today.I should go to the dentist.今天我的牙齿很痛。我该去看牙医。