水生动植物如鱼、蛙、龟、蛇等的排泄物中也会含有类似的难处理的物质。
The excreta of aquatic animals-fish frogs turtles snakes etc-contain similar refractory materials.
腐生生物从无生命的有机物质，如动植物尸体、食物制品、排泄物等，获得食物。
Saprophytes secure their food from nonliving but organic matter, such as deed bodies of plants and animals food products, excrements, etc.
水生动植物如鱼、蛙、龟、蛇等的排泄物中也会含有类似的难处理的物质。
The excreta of aquatic animals - fish, frogs, turtles, snakes, etc - contain similar refractory materials.
水生动植物如鱼、蛙、龟、蛇等的排泄物中也会含有类似的难处理的物质。
The excreta of aquatic animals-fish, frogs, turtles, snakes, etc-contain similar refractory materials.
水生动植物如鱼、蛙、龟、蛇等的排泄物中也会含有类似的难处理的物质。
The excreta of aquatic animals-fish, frogs, turtles, snakes, etc-contain similar refractory materials.
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