滞痰用英语怎么说

滞痰在英语中可以翻译为 "phlegm retention" 或 "retained phlegm".
滞痰是指在呼吸道内留存的痰液或粘液。它通常是由于呼吸道感染或其他因素导致的，并且可能会导致咳嗽、困难呼吸和胸部压迫感。
下面是一些英文例句及其中文翻译：
"I've been having a lot of trouble breathing lately because of retained phlegm in my chest." (我最近一直很难呼吸，因为胸部留有痰液。)
"The doctor prescribed me some medication to help clear the retained phlegm in my throat." (医生给我开了一些药，帮助我清除喉咙内的痰液。)
"I've been trying to drink lots of water and use a humidifier to help loosen the retained phlegm in my respiratory tract." (我一直在尽量喝水并使用加湿器来帮助溶解呼吸道内的痰液。)