/'vɜ:mɪn; `vɝmɪn/
n [U, usu pl v 通常与复数动词连用]
1 certain wild animals and birds (eg rats, foxes, moles, owls) which are harmful to crops and farmyard animals and birds 害兽及害鸟（为害庄稼及家畜家禽的, 如鼠、狐、鼹鼠、枭）
*put down (exterminate) vermin 消灭害兽和害鸟. Cf 参看 pest 2.
2 insects (eg lice) sometimes found on the bodies of human beings and other animals 害虫（如虱）
*a room alive/crawling with vermin 有害虫的房间.
3 human beings who are harmful to society or who prey on others 为害社会或他人的人; 蟊贼; 害人虫.

n [plural]
[Date: 1200-1300; Language: Old French;Origin:Latin vermen 'worm']
small animals, birds, and insects that are harmful because they destroy crops, spoil food, and spread disease
　The beds were filthy and full of vermin.
　Foxes are considered vermin.
unpleasant people who cause problems for society