speculator [ˈspɛkjəˌletɚ]

例句:

• By his own admission, he evaded taxes as a Florida real-estate speculator.
  他亲口承认自己在佛罗里达从事房地产投机生意时逃过税。
  
• He was a sinister and crafty speculator.
  他是一个险诈的投机商.
  
• The stake was large, and Harkness was a daring speculator.
  赌注不小, 而哈克尼斯又是一个大胆的投机家.
  
• People say that he is a daring speculator.
  来自WSJ
• "I am proud to be a speculator," Niederhoffer wrote.
  来自NEWYORKER
• Boesky was a stock speculator who pleaded guilty and served two years in prison.
  来自NPR