Cách sử dụng
The word 'cough' is used to describe a sudden, loud expulsion of air from your lungs that helps clear your throat and airways. You may cough when you have a cold, respiratory infection, or allergies. You can say "I have a cough" or "I am coughing" if you are experiencing this symptom. It is important to cover your mouth and nose when you cough to avoid spreading germs to others.