He has a bad cough.

他咳得很厉害。

youdao

Steven: Fever and a bad cough.

史蒂文：发烧，咳嗽也很厉害。

youdao

May: Fever and a bad cough.

阿美：发烧，咳嗽也很厉害。

youdao

"He said Mister Clay seemed to be very weak and had a very bad cough, that he was sure Mister Clay wanted to do something for the good of his country during the little time he had left on Earth.

VOA: special.2009.03.26

Thanks to that and Advair's nifty delivery system--a plastic purple puck that is easy to use--the drug has moved far beyond a narrow audience of severe asthma patients to reach those with mild cases and nonasthmatics who simply have a bad bronchial cough.

FORBES: Trouble Breathing

Older children and adults who have whooping cough often appear to have a bad cold or persistent cough that can be so severe that it causes vomiting.

CNN: Can breast-feeding prevent whooping cough?