名词中文翻译
中文翻译：禽类气囊
同义词：
['avian', 'aerial例句：1. The allantoic sac is the air sac in birds.（禽类的气囊是鸟类的气囊。）']
例句：
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1. The allantoic sac is the air sac in birds.
禽类的气囊是鸟类的气囊。
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2.The allantoic sac is responsible for the bird's ability to fly.
禽类的气囊负责鸟类飞行的能力。
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3.The allantoic sac is where the bird stores its energy reserves.
禽类的气囊是鸟类储存能量的地方。