doublern.二倍器doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份doubleshearadj.双剪的double door双开门double leafadj.双翼的double mind二心double code双重密码Double Fuel双燃料double veil双层菌幕double clip双夹(带两个把的小书夹)double wore双字double PBSK双二相相移键控