egg case

• 卵鞘

egg case的用法和样例：

例句

1. The egg case of certain insects and mollusks.
   卵囊一些昆虫或软体动物的卵囊
2. A similar natural protective covering or structure, such as the egg case of a spider.
   茧状物类似的自然保护覆盖层或结构，例如蜘蛛的蛋壳