verm

例句：

1. 1.The vermin infested the house, causing great damage.
   家中的害虫滋生，造成了巨大的损害。
2. 2. The disease is caused by a parasite that feeds on the host's blood.
   这种疾病是由一种寄生生物引起的，它以宿主的血液为食。
3. 3. The vermin were eradicated using chemical sprays.
   使用化学喷雾消灭了这些害虫。