dirtiest

例句:

• He always picked the hardest and dirtiest jobs.
  他总是挑最脏最累的活干.
  
• Even in the dirtiest weather, they were driven to go out to sea.
  即使是最恶劣的天气, 他们也被迫出海.
  
• He was one of the dirtiest little unfortunate I ever saw.
  我难得看见这样脏的一个小可怜.
  
• It was once the dirtiest coal-fired carbon dioxode-emitting power plant in Western Europe.
  来自THETIMES
• Canadian Oil sands, one of the dirtiest forms of oil that we desire.
  来自SA
• This dirtiest of all fossil fuels supplies two-thirds of the country's energy needs.
  来自VOA