noun🔗Share洞，窟窿。 A hole or hollow depression."The dentist found a small cavity in my tooth. "牙医发现我牙齿里有个小蛀洞。medicineanatomybodypartgapChat with AIVocabulary GamePractice Reading
noun🔗Share腔，窦，空腔 A hollow area within the body (such as the sinuses)."The doctor examined my nose to check for any infection in the sinus cavity. "医生检查了我的鼻子，看看鼻窦腔里有没有感染。anatomymedicinebodyorganphysiologyChat with AIVocabulary GamePractice Reading
noun🔗Share龋洞, 蛀牙孔 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 found a small cavity on Sarah's front tooth. "牙医发现莎拉的前牙上有一个小龋洞。medicinediseasebodyanatomyChat with AIVocabulary GamePractice Reading
