pest

英 [pest]

美 [pest]

n. 害虫; 害兽; 害鸟; 讨厌的人(或物)

复数：pests　

Collins.2 / BNC.6622 / COCA.6842

牛津词典

noun

害虫；害兽；害鸟
an insect or animal that destroys plants, food, etc.
1. pest control
  害虫防治
2. insect/plant/garden pests
  害虫；作物 / 花园害虫
讨厌的人（或物）
an annoying person or thing
1. That child is being a real pest.
  那个孩子真讨厌。

N-COUNT 害虫；害兽
Pestsare insects or small animals which damage crops or food supplies.
1. ...crops which are resistant to some of the major insect pests and diseases...
  对一些主要病虫害有抵御能力的作物
2. Each year ten percent of the crop is lost to a pest called corn rootworm.
  一种叫玉米根虫的害虫每年会让粮食减产10%。
3. ...new and innovative methods of pest control.
  防治虫害的创新办法
N-COUNT 讨厌鬼（尤指儿童）
You can describe someone, especially a child, as apestif they keep bothering you.
1. He climbed on the table, pulled my hair, and was generally a pest.
  他爬桌子，拽我的头发，总之是个讨厌鬼。

noun

any unwanted and destructive insect or other animal that attacks food or crops or livestock etc.
1. he sprayed the garden to get rid of pests
2. many pests have developed resistance to the common pesticides
a persistently annoying person
Synonym:blightercusspesterergadfly
any epidemic disease with a high death rate
Synonym:plaguepestilence
a serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal
Synonym:plaguepestilencepestis