主要是脚有蹼的游水鸟。
有蹼的有分开的足趾，每趾都粘有网状叶，用于某些鸟类。
Having separate toes, each bordered by a weblike lobe. Used of the feet of certain birds.
水獭，是一种细小的动物，有四只有蹼的脚，一条扁平的尾巴，身上有厚的啡色毛皮，在河边生活。
An otter. A small animal that has four webbed feet, a flat tail and thick brown fur, living on the edge of a river.
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