What do sharks feed on, mainly fish and other small sea animals?
鲨鱼以什么为食，主要是鱼类和其他小型海洋动物？
A group of colorful wild animals will spring to mind: a parrot's rainbow feathers or the showy scales of sea fish.
你会想到一群色彩斑斓的野生动物：鹦鹉的彩虹羽毛或海鱼的艳丽鳞片。
Many fish and sea animals live in the streams, rivers, lakes, seas and oceans on the Earth.
很多鱼类以及海洋动物生活在小溪、河流、湖泊、海洋之中。
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