单词	student costs
释义	student costs 学生成本
随便看	Fixed fire monitor extinguishing systems fixed fire protection system fixed fire suppression system fixed first order of arragement fixed-fixed beam fixed fixed bridge fixed-fixed bridge fixed flange fixed flap fixed flashing light fixed flat fixed flat-bed platen fixed flat conveyor fixed flexion contracture fixed floor fixed flow system fixed fluid-bed fixed fluidized bed fixed fluidized-bed reactor fixed fluorine fixed foam extinguisher system fixed foam generator Fixed Foam Nozzle fixed focal length fixed focus