Opercula
operculum的复数
🗣️ 情景例句
Seeing as you are all so tired, we'll finish this lesson next time.
考虑到现在你们都很累了，这课我们下次接着讲吧。
The noisy fowler catches no bird.
捕禽人大肆声张，鸟儿就不会落网。
That does not prove that it does not exist;
这并不是证实不存在噪音对健康的影响。