furrowed wing case

例句：

1. 1.The scientist used a microscope to examine the furrowed wing case of the butterfly.
   这位科学家使用显微镜来检查蝴蝶的沟壑状翅膀壳体。
2. 2. The researcher found that the furrowed wing case of the bird was uniquely adapted for flight.
   这位研究员发现，这只鸟的沟壑状翅膀壳体是其飞行适应性的独特适应。
3. 3.The ancient civilizations often used furrowed wing cases as symbols of power and status.
   古代文明常常用沟壑状的翅膀壳体作为权力和地位的象征。