twenty [ˈtwɛnti, ˈtwʌn-]

例句:

• Take a hundred and twenty values and calculate the mean.
  取120个值计算平均数。
  
• Twenty years ago, that may have been true.
  来自BBC
• By the time he's twenty he'll know everyone worth knowing in Washington.
  到20岁时，他就会认识华盛顿所有值得认识的人。
  
• Twenty years ago, people who drank were cool.
  来自VOA
• Brian counted to twenty and lifted his binoculars. Elena did the same.
  布赖恩数到20，举起了双筒望远镜。埃琳娜也照着做了。
  
• Make it a hundred and twenty pages, then.
  来自NEWYORKER