cavity

C 開(kāi)頭單詞六級(jí)詞匯專八核心詞雅思備考詞托福詞匯 GRE詞匯

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)]

劍橋詞典

cavity noun [C] (HOLE)

cavity noun [C] (TOOTH)

cavity noun [C] (IN THE BODY)