气管内层 endotrachea
- 这一细胞在进化中首先会形成一个特殊的像气管内层一样薄膜组织。
The other is the first step on the path to a particular sort of tissue such as the lining of a windpipe. - 年年都会咳嗽、支气管内层也会分泌黏液,持续时间一次比一次久。
The coughing and mucus production can return each year and can last longer each time. - 支气管炎就是支气管有发炎,或者是支气管在支气管内层分泌过多黏液。
In bronchitis the bronchi become inflamed or secrete excess mucus onto the lining of the bronchi.
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