随着呼气性阻塞越来越严重，病人的呼吸困难也逐渐加重。

As the severity of the obstruction to expiratory flow increases, patients become increasingly dyspneic.

youdao

随着呼气性阻塞越来越严重，病人的呼吸困难也逐渐加重。

As the severity of the obstruction to expiratory flow increases, patients become increasingly dyspneic.

youdao