elytratresia

例句：

1. 1. The bird's elytratresia are unique and beautiful.
   这只鸟的翼状物非常独特且美丽。
2. 2.The butterfly's wings are its most important adaptation for flight.
   蝴蝶的翅膀是其最重要的飞行适应。
3. 3. The scientist studied the structure of the elytratresia in order to understand how it functions.
   科学家研究了翼状物的构造，以便理解它如何工作。