Operculums
n. [昆] 盖；鳃盖
🗣️ 情景例句
You didn't put film in the camera, silly!
笨蛋，摄影机里没有放胶卷。
A friend is never known till a man have need.
不到患难时，永远不能认识真正的朋友。
Take it easy, you will be all right in a couple of days.
别担心，你两天之内就会痊愈的。