slide-valve lead

Now if this drips down the back of the throat, which we call a post nasal drip, the mucus will slide into the bronchi, that's the tubes that lead to the lung, and then a little lower down which will irritate the lung.

现在，如果粘液流到喉咙后部，也就是鼻涕倒流，粘液就会进入与肺相连的支气管，再向下就会刺激到肺。

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