Rotifera

例句：

1. 1. Rotifers are tiny creatures that live in water and eat algae.
   轮虫是生活在水里、吃藻类的微小生物。
2. 2.The rotifers play a crucial role in the food chain by decomposing organic matter.
   轮虫在食物链中通过分解有机物起着至关重要的作用。
3. 3. In aquariums, rotifers can be used as indicators of water quality.
   在水族箱中，轮虫可以作为水质的指示器。