pest
/pest/noun
1- a destructive insect or other animal that attacks crops, food, livestock, etc害虫, 害兽。
1.1
- informal an annoying person or thing; a nuisance〈非正式〉害人精, 讨厌的人(或东西):
he was a real pest.
他真是一个讨厌鬼。
1.2
the pest
archaic bubonic plague〈古〉鼠疫。
词源
late 15th cent. (denoting the bubonic plague): from French peste or Latin pestis 'plague'.