Hirudo

例句：

1. 1. Hirudo is a type of venomous snake found in the ocean.
   水蛭是一种海洋中的有毒蛇类。
2. 2. Hirudo has been used for centuries to treat wounds and inflammation.
   水蛭被用于治疗伤口和炎症已有数百年历史。
3. 3.Hirudo can be found in various parts of the world, including tropical regions.
   水蛭可以在世界各地的热带地区找到。