unworkable [ʌnˈwɜ:rkəbl]

例句:

• There is the strong possibility that such cooperation will prove unworkable.
  这种合作很有可能会行不通。
  来自柯林斯例句
• Since it is unworkable, Nasa will fund it.
  来自SA
• Washington is unhappy with the peace plan which it views as unworkable.
  美国政府对和平计划不满，认为它不可行。
  
• The law as it stands is unworkable.
  照现在的情形，这条法律是难以执行的。
  
• I've chosen a practical solution over an unworkable one.
  来自THETIMES
• In practice, however, the scheme was preposterous and unworkable.
  来自NEWYORKER