1·I had a persistent cough for over a month.
我持续咳嗽已经一个多月了。
—— 《柯林斯英汉双解大词典》
2·A 22-year-old Chinese woman who suffered from a persistent cough was shocked to learn that she had a piece of chicken bone lodged in her lung.
一名22岁的中国女子患有长期咳嗽，当她得知自己的肺里卡着一块鸡骨头时，她感到非常震惊。
3·I have a persistent cough.
我咳嗽不断。
4·He has a persistent cough.
他不断地在咳。
5·I have a persistent cough.
持续的连续发生的；
6·Showed in patients with persistent cough.
患者表现为持续性咳嗽等。
7·A persistent cough may be a symptom of tuberculosis.
持续的咳嗽可能是肺结核的症候。
8·A persistent cough may be a sign of a serious condition.
持续的咳嗽可能是加重的征兆。
9·A persistent cough may be the sign of a serious condition.
持续的咳嗽可能是一种严重的情况的表现。
10·Anyone with a persistent cough should get checked out as a precaution.
持续咳嗽的人都应该去检查一下，以防万一。