the corpulent mantle

• 外套膜

the corpulent mantle的用法和样例：

例句

1. They move in short spurts by closing their mantle quickly, ejecting water and jet-propelling themselves backwards.
   它们可以快速的闭合外套膜，喷射出水流，推动其向后运动，以此来进行小范围的移动。