double duty

英['dʌbl'djuːti] 美['dʌbəl'dʊti]
  • 双重任务
  • double adj.双重的;成双的;两倍的v.翻一番;使...加倍n.两倍;双份
  • duty n.义务;职责;责任;税;关税
    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。