3325英语网 英语单词
Operculum的音标发音
Operculum
英式发音：[әu'pә:kjulәm]
美式发音
(noun.) a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted.
布莱恩录入
(noun.) a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted.
布莱恩录入