名词
中文翻译：气室
同义词：
['air sac', 'air sac cavity']
例句：
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1.The fish had a small acoasm in its stomach.
这条鱼在胃里有一个小气囊。
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2. The baby bird's acoasm was distended with fluid.
这只小鸟的气囊充满了液体。
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3. The scientist studied the function of acoasms in the lungs.
这位科学家研究了肺气囊的功能。