dou.ble-quickadj.(形容词)Very quick; rapid.极快的;快速的n.(名词)A marching cadence; double time.快步;跑步v.intr.tr.(不及物动词和及物动词)dou.ble-.quicked,dou.ble-.quick.ing,dou.ble-.quicks To double-time.快步行进