短语词组短語fish swim -bladder 魚鰾swim -bladder 泳鰾alaska cod swim -bladder 大頭鱈鰾marine eel swim -bladder 海鰻鰾blue shark swim -bladder 大青鯊鰾gummy shark swim -bladder 鮫鯊白swim bladder membrane 魚鰾膜 返回 swim bladder