Operculum
n. 叶盖, 鳃盖骨\\n[医] 盖, 岛盖, 盖(昆虫), 厣(软体动物), 鳃盖(鱼)
🗣️ 情景例句
There's nobody here!
这里一个人都没有
better early than late.
宁早勿迟。
There is a picture on the wall.
墙上有一张画。