double cut(锉的)双纹,双掏槽,搓球,对削doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份Double-cup part双杯形件double spur grade人字坡double leadership双重领导double chime bell双音铃double aortic arc双主动脉弓double ended cord两头塞绳double end shovel双尖互换式松土铲double monosomics双单体生物double wound coil双绕线圈double-rowpiles双排桩

1. Our new washing machine does double duty; it washes the clothes and also dries them.
   我们新买的洗衣机有双重功能，不仅洗衣还可烘干。