If this happens, it can become very difficult to cough up phlegm.
如果发生这种情况，它可以成为很困难的痰咳起来。
Major clinical manifestations are cough, cough up phlegm, shortness of breath.
主要临床表现有咳嗽、咯痰、气短。
In some cases, people with heart failure cough up bloody phlegm.
在某些情况下，心衰患者咳血痰。
In some cases, people with heart failure cough up bloody phlegm.
在某些情况下，心衰患者咳血痰。
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