免费

• Sudan had been polio - free since two thousand five
  苏丹从2005年开始就免费接种。
• It ' s free of charge and you don ' t need to pay it
  这是免费的，因此你不必付钱。
• He ( she ) could get good comp from the house
  他(她)可以获得赌场最好的免费招待。
• And i think you know my position on free food
  我想你知道我从来不拒绝免费的食物
• How does the freerice vocabulary program work
  免费大米的词汇计划是如何运作的？
• Whoever wins is gettin ' a free tetanus shot ! ok
  谁赢了下次就能免费治病！如何？