a smoker's cough的用法和样例：
- Janet had a bad cough all last week.
- She gave a quiet cough to attract my attention.
- She has been racked with a bad cough.
- She was given a needle for whooping cough.
- My fever is gone, but I still have a cough.
- My bedfellow is cough and cramp; we sleep three in a bed.