柯林斯詞典cavity /?k?v?t?/ (cavities) 1. N-COUNT A cavity is a space or hole in something such as a solid object or a person's body. 洞; 腔[正式] ...a cavity in the roof. …屋頂?shù)囊粋€(gè)洞。2. N-COUNT In dentistry, a cavity is a hole in a tooth, caused by decay. (牙齒的) 齲洞[技術(shù)] 返回 cavity劍橋詞典 cavity noun [C] (HOLE) a hole , or an empty space between two surfaces 空隙；洞；腔 The gold was hidden in a secret cavity. 金子藏在一個(gè)隱秘的洞穴裡。 cavity noun [C] (TOOTH) a hole in a tooth （牙齒上的）齲洞，蛀牙洞 cavity noun [C] (IN THE BODY) medical specialized a hollow space in an organ or body part （身躰內(nèi)的）腔 the upper nasal cavity 鼻腔上部 返回 cavity