infestation [ˌɪnfe'steɪʃn]

例句:

• Parts of California are suffering from an infestation of oriental fruit flies.
  加利福尼亚的部分地区正遭受东方果蝇的大肆侵袭。
  来自柯林斯例句
• This is a rodent infestation of the entire body politic.
  来自WSJ
• He set out to fight the drug infestation of Omaha by reclaiming a youth from the local gangs.
  他从挽救当地帮派的一个年轻人入手着力消除奥马哈的毒品泛滥问题。
  
• The eradication of an established infestation is not easy.
  根除昆虫蔓延是不容易的.
  
• Infestation is treated with medication to kill the parasite.
  来自BBC
• I just knocked out a light infestation with it.
  来自SA