英语词汇“air sac”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	air sac
释义	air sac ˈair ˌsac noun [C] _SPECIALIZED 1 F0 a space filled with air that continues from a bird's lungs into one of its bones or another body area, used in breathing Thesaurus⁺: ↑Substances and structures in the bodyThesaurus⁺: ↑The respiratory system 2 F0 a wide part like a bag in the tubes an insect uses for breathing Thesaurus⁺: ↑Substances and structures in the bodyThesaurus⁺: ↑The respiratory system 3 F0 an alveolus (= a very small air bag in the lungs) Thesaurus⁺: ↑Substances and structures in the bodyThesaurus⁺: ↑The respiratory system
随便看	fair-haired boy Fair Isle fairly fairly and squarely fairly traded fair-minded fairness fair play fair's fair fair sth out fair to middling fair trade fairtrade fairway fair-weather friend fairy fairy bread fairy cake fairy floss fairy godmother fairyland fairy lights fairy story fairy tale fairy-tale

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