fifteen [fɪfˈtin]

例句:

• Fifteen-year-old Danny is on the run from a local authority home.
  15岁的丹尼从地方当局的收容所逃跑了。
  
• There are fifteen species of crane in four genera.
  来自BBC
• My lads...shot fifteen of these depredators from one stance.
  来自J. C. Atkinson
• They had left school at fifteen and were quite untutored in writing.
  他们15岁就辍学了，几乎未接受过正式的写作训练。
  
• The incident brings the total of people killed to fifteen.
  这次事故使死亡总人数达到15人。
  
• Five, ten, fifteen kilometres, who knows?
  来自THETIMES