spareadj.备用的；多余的；闲置的v.抽出；饶恕；赦免；节约n.备用品；剩余spare level备用层spare blade备用刀片spare rotor备用转子spare stand备用机座spare bones不肯吃苦; 懒Spares part备件spare space空位,备用位置spare cable备份电缆spare power备投装置spare partsn.备件；零配件