noun 下载 🔗分享 龋洞，蛀牙洞。 A hole or hollow depression. Examples : "The dentist found two small cavities in my back teeth. " 牙医发现我的后槽牙里有两个小龋洞。 medicine anatomy disease body 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 窦，腔，空腔 A hollow area within the body (such as the sinuses). Examples : ""When Sarah had a cold, her nasal cavities felt blocked and made it hard to breathe." " 萨拉感冒的时候，她的鼻窦感觉堵塞了，呼吸都变得困难。 anatomy medicine body organ 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 蛀牙，龋洞 A small or large hole in a tooth caused by caries; often also a soft area adjacent to the hole also affected by caries. Examples : "The dentist told Maria she had two cavities and needed fillings. " 牙医告诉玛丽亚她有两颗蛀牙，需要补牙。 medicine body disease anatomy 与AI对话词汇游戏阅读练习
