痰液的出现也显示了从含水泡沫状痰液到粘液痰液到粘膜粘液痰液的过程。
The appearance of sputum also showed the process from watery frothy sputum to mucus sputum to mucopuraleat sputum.
病毒性急性支气管炎，通常咳出少量白色粘液痰。
With viral bronchitis, small amounts of white mucus are often coughed up.
这种粘液痰经常从白色变为绿色或黄色。
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