germ-free [d'ʒɜ:mfr'i:]

例句:

• I wasn't expecting you to do it for free.
  我并没有指望你白干。
  来自柯林斯例句
• The Egyptians were on their way to be free.
  来自BBC
• To listen you need the free Real Player software.
  来自BBC
• Screenraeder.net is where you can download a FREE screenreader.
  来自BBC
• The normal mice gained weight; the germ - free mice stayed lean.
  正常的鼠变胖, 而无菌鼠保持了体重.
  
• Keep yourself and bathrooms clean and germ - free.
  请保持身体、座位、盥洗室乾净,让病菌远离.