Perisoma
[医]体壁（棘皮动物）
🗣️ 情景例句
We had a cat when I was eight years old.
我八岁时养过一只猫。
After the play was over,we all wanted to get something to eat.
在戏完了以后，我们都想要吃一些东西。
He made the first telephone.
他发明了第一部电话。