acleithral ooecium

例句：

1. 1. The acleithral ooecium is a fascinating organism that has been studied for centuries.
   这种生物是令人着迷的，已经被研究了几个世纪了。
2. 2. The acleithral ooecium plays a crucial role in the ecosystem by providing food and shelter for other organisms.
   这种生物在生态系统中起着至关重要的作用，为其他生物提供食物和庇护所。
3. 3. The acleithral ooecium is considered to be one of the most important biodiversity indicatorsin the world.
   这种生物被认为是世界上最重要的生物多样性指标之一。