wild mammals and birds which are believed to be harmful to crops, farm animals, or game, or which carry disease, e.g. foxes, rodents, and insect pests
害兽;害鸟;害虫。
parasitic worms or insects
寄生虫。
〈喻〉 害人虫;坏分子
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the vermin who ransacked her house .洗劫她房子的歹徒。
"Middle English (originally denoting animals such as reptiles and snakes): from Old French, based on Latin