pest

• 名词，可指危害农作物或牲畜的有害昆虫或动物，也可指不断烦人的讨厌鬼，历史上还指鼠疫等死亡率高的严重流行病。

A noun that can refer to a destructive insect or animal that attacks crops or livestock, a persistently annoying person, or historically, a serious epidemic disease with a high death rate, such as the bubonic plague.

1. Bubonic plagueB2formalmedical

   A serious, sometimes fatal, infection in rodents caused by the bacterium Yersinia pestis, which can be accidentally transmitted to humans through the bite of an infected flea.

   鼠疫

   • The bubonic pest devastated Europe in the Middle Ages.
   • Modern antibiotics can treat the pest if caught early.
   • The outbreak of pest among rats caused widespread panic.

   同义词black deathbubonic plaguepestilenceplague

2. B2formalmedical

   Any widespread epidemic disease that causes a high number of deaths.

   瘟疫

   • The pest swept through the city, leaving thousands dead.
   • Historical records describe the pest as a terrible scourge.
   • Quarantine measures were introduced to contain the pest.

   同义词contagionepidemicpandemicpestilenceplaguescourge

3. Annoying personB1informal

   A person who persistently annoys or bothers others.

   讨厌的人

   • My little brother is such a pest when I'm trying to study.
   • Stop being a pest and leave me alone!
   • That guy at the party was a real pest, asking too many questions.

   同义词annoyancebotherheadacheirritantnuisanceplaguetorment

4. Destructive animal or insectB1formalscientific

   Any unwanted and destructive insect or animal that attacks food, crops, or livestock.

   害虫

   • Farmers use pesticides to protect their crops from pests.
   • Rats and mice are common household pests.
   • The garden was infested with pests that ate all the vegetables.

   同义词bugvarmintvermin