The last negotiated net cost contract expired in February 2001. The routes involved have all been tendered and have been let either as Tendered Net Cost contracts or Gross Cost contracts.是什么意思_The last negotiated net cost contract expired in February 2001. The routes involved have all been tendered and have been let either as Tendered Net Cost contracts or Gross Cost contracts.在线翻译_英语_读音_用法_例句