| 释义 | 
		air bladdern.Biology(名词)【生物学】- An air-filled structure in many fishes that functions to maintain buoyancy or, in some species, to aid in respiration. Also called  swim bladder 鳔;气囊:一种充满空气的结构,许多鱼类用此来保持漂浮或者有些物种的鱼用此来帮助呼吸 也作  swim bladder
 
 - See  float  参见  float 
 
 
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