fly-tip       
verb [ I or T ] UK uk/ˈflaɪ.tɪp/ us/ˈflaɪ.tɪp/
 非法倾倒垃圾
to illegally leave things that you do not want next to a road, in fields, in rivers, etc.
  There are significant penalties for those who fly-tip. 针对非法倾倒垃圾的人有高额罚款。 
 Companies that fly-tip their waste will be prosecuted. 非法倾倒垃圾的公司将被起诉。 
 See: fly-tipping
 - More examples
 - Charging for waste collection tempts people to fly-tip.
 - Fly-tipping waste is a criminal offence subject to a penalty.
 - We have a problem with people fly-tipping domestic appliances.