vermin
US
UK vermin n: uncountable (animal: pest) (本义)
SC 害虫 hài chóng
SC 害鸟 hài chóng，hài niǎo
SC 害兽 hài chóng，hài shòu
Vermin had infested the house.
vermin n: figurative, uncountable (contemptible person) (比喻危害社会或他人的人)
SC 寄生虫，害虫 jì shēng chóng，hài chóng
TC 寄生蟲
TC 寄生蟲
Under that regime, prisoners were vermin.