ADJ (of many amphibians, such as frogs) having gills during one stage of the life cycle only (很多两栖动物，如蛙等)只有一段生命周期长有鳃的
ADJ（形容词） (of many amphibians, such as frogs) having gills during one stage of the life cycle only (很多两栖动物，如蛙等)只有一段生命周期长有鳃的