washboard

washboard
noun
  1. a board made of ridged wood or a sheet of corrugated zinc, used when washing clothes as a surface against which to scrub them
    洗衣板,搓板
    ■a similar board played as a percussion instrument by scraping
    (洗衣板式)敲击板
    ■(chiefly N.Amer.)the surface of a worn, uneven road
    (主北美)(磨损得凹凸不平的)搓板状道路
    ■[as modifier]denoting a man's stomach that is lean and has well-defined muscles
    (指男子肚子)像搓板一样瘦
  2. a board fixed along the side of a boat to prevent water from spilling in over the edge
    (船边)挡水(浪)板
verb
  1. [with obj.][usu. as adj. washboarded](chiefly N. Amer.)cause ridges to develop in (a road or road surface)
    (主北美)造成(道路,路面)凹凸不平
    a road left washboarded by winter frost.
    由于冬天的霜冻而变得坑坑洼洼的道路。
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