Canvasback

['kænvəsbæk] or ['kænvəs,bæk]

解释:

(noun.) North American wild duck valued for sport and food.

克劳德整理--From WordNet

解释:

(n.) A Species of duck (Aythya vallisneria), esteemed for the delicacy of its flesh. It visits the United States in autumn; particularly Chesapeake Bay and adjoining waters; -- so named from the markings of the plumage on its back.

埃斯蒂斯整理