英语词汇air sac怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	air sac
释义	air sac noun 1 a lung compartment containing air; an alveolus 肺腔; 肺泡。 1.1 an extension of a bird's lung cavity into a bone or other part of the body （鸟类）气囊。
随便看	double knitting double lock double-lock double napoleon double negation double negative doubleness double obelus double or nothing double-park double play double pneumonia double precision double quick doubler double reed double refraction double rhyme doubles double salt double saucepan double sharp double shuffle double-sided doublespeak

英汉双解词典包含131075条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。