cyclostomata

例句：

1. 1. The parasite causes a disease in humans and animals.
   这种寄生虫会导致人类和动物的疾病。
2. 2. Researchers are studying the effects of this parasite on human health.
   研究人员正在研究这种寄生虫对人类健康的影响。
3. 3. The cysts can be found in soil, water, and food.
   这些囊泡可以在土壤、水和食物中找到。