noun 下载 🔗分享 牙本质,齿质 The hard, dense calcareous material that makes up the bulk of a tooth Examples : "The dentist explained that the cavity had reached the dentine, which is why my tooth was so sensitive. " 牙医解释说,蛀牙已经蛀到牙本质了,牙本质是构成牙齿主体部分的坚硬物质,所以我的牙齿才会这么敏感。 anatomy material body physiology medicine 与AI对话词汇游戏阅读练习