单词：air tube
[医] 呼吸管, 呼吸道
air tube的用法和样例：
例句
- Epithelium also lines the air tubes and lung cavities.上皮组织还衬盖气管和肺腔。
- An appropriate-size tube is chosen to fit the trachea.选用与气管大小相仿的管子。
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