unmarked [ʌnˈmɑ:rkt]

例句:

• He did die a pauper and is buried in an unmarked grave.
  他死的时候一文不名，葬在一处无名墓穴中。
  
• It's illegal for unmarked mini-cabs to ply for hire.
  无标志的电话预订出租车沿街拉客是非法的。
  
• Unlike most other gourmet truckers, his vehicle is unmarked.
  来自THETIMES
• Her shoes are still white and unmarked.
  她的鞋仍然很白，没有任何污渍。
  
• This one was largely unmarked and felt empty, haunting.
  来自WSJ
• Diamonds are routinely shipped in unmarked packages on commercial flights.
  来自THETIMES