exocuticle

例句：

1. 1. The scientist discovered the new species by analyzing its exocuticle.
   科学家通过分析其外骨骼发现了新物种。
2. 2.The spacecraft's exocuticle is designed to withstand the harsh environment.
   宇宙飞船的外骨骼设计用来承受恶劣的环境。
3. 3. The exocuticle of the butterfly provides protection from predators.
   蝴蝶的外骨骼提供了对捕食者的防护。