词汇与表达：vermin

vermin 有害的动物，害兽，害虫
From 1066 to the 17th century the fox was looked upon as vermin.
从1066年到17世纪，狐狸一直被视为害兽。

pest 也有类似的意思

Frogs eat pests which destroy crops and carry diseases.
青蛙吃破坏庄稼、传播疾病的害虫。