hematogaster

例句：

1. 1. Hematogaster is a type of parasitic worm that infects humans and animals.
   血吸虫是一种寄生在人类和动物体内的寄生虫。
2. 2.The hematogaster causes severe abdominal pain and fever.
   血吸虫会引起严重的腹部疼痛和发烧。
3. 3. Hematogaster control measures are essential to prevent the spread of the disease.
   控制血吸虫的措施对于预防该病的扩散至关重要。