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
He ventured to speak to her.
他鼓起勇气向她说话。
And to stay ahead of the competition is to openly and freely exchange our opinions.
处于竞争领先地位的方法就是公开、自由交换我们的想法
However, as the evidence began to accumulate, experts from the Zoo felt obliged to investigate,
可是，随着证据越来越多，动物园的专家们感到有必要进行一番调查，