goosander merganser sheldrake秋沙鸭
mergus merganser goosander普通秋沙鸭
同义词：Mergus merganser
N（名词） a common merganser (a duck), Mergus merganser, of Europe and North America, having a dark head and white body in the male 秋沙鸭; 产于欧洲和北美洲，雄性头呈深色，身体呈白色