Operculums
n. [昆] 盖；鳃盖
🗣️ 情景例句
Okay. Thank you.
好的，谢谢。
Have but few frieds,though many acquaintances.
结交可以多，朋友应宜少。
I'd like to know some information about the current investment environment in your country?
我想了解一下贵国的投资环境。