n.[动]外骨骼；皮骨骼
The old, empty exoskeleton is called an exuvia. 脱去的旧的空的外骨骼被称为蜕。
The exoskeleton of insects is largely made of protein and chitin. 昆虫的外骨骼大部分是由蛋白质和几丁质组成的.
