noun🔗Share龋洞，蛀牙洞。 A hole or hollow depression."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。medicineanatomydiseasebodyChat with AIVocabulary GamePractice Reading
noun🔗Share窦，腔，空腔 A hollow area within the body (such as the sinuses).""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。anatomymedicinebodyorganChat with AIVocabulary GamePractice Reading
noun🔗Share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."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。medicinebodydiseaseanatomyChat with AIVocabulary GamePractice Reading
