cleanest

例句:

• He wore his cleanest slacks, a clean shirt and a navy blazer.
  他穿着他最干净的便裤，洁净的衬衫和藏青色上装。
  
• He's the cleanest , briskest , most alive thing that's walked in here in many a day.
  他是这许多天来每天到这里来的人之中最清洁、最神气 、 最活泼的家伙.
  
• Contamination is a continual worry even in the cleanest equipment and the most favorable experimental situation.
  甚至在有最清洁的设备和最好的实验条件时,沾染也是一个始终存在的问题.
  
• It is the cleanest & safest form of energy.
  来自SA
• It is the cleanest, most abundant energy source.
  来自VOA
• Nuclear is by far the cleanest option available.
  来自SA