vermin
noun [ plural ] uk/ˈvɜː.mɪn/ us/ˈvɝː.mɪn/
害兽；害虫
small animals and insects that can be harmful and are difficult to control when they appear in large numbers
Flies, lice, and cockroaches can all be described as vermin. 苍蝇、虱子和蟑螂都可以被称作是害虫。
offensive disapproving危害社会的人，害人虫；歹徒
people who are unpleasant and harmful to society
He thought all terrorists were vermin. 他认为所有恐怖分子都是害人虫。