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来源:雅诚德英语网
Indeed, the world's 37 species of seahorse are fish, breathing through gills and using a swim bladder to control their buoyancy.
事实上,世界上有37种海马是鱼,它们通过鳃呼吸,用鱼鳔来控制浮力。
Indeed, the world's 37 species of seahorse are fish, breathing through gills and using a swim bladder to control their buoyancy.
事实上,世界上有37种海马是鱼,它们通过鳃呼吸,用鱼鳔来控制浮力。