Cách sử dụng
Fever is a word that describes when our body temperature is higher than usual. It is often associated with being sick, and can make us feel uncomfortable and tired. We can use the word fever when we talk about having a cold or the flu, or when we experience other illnesses that cause high body temperature. We might say "I have a fever" or "He is running a fever" to describe this. It is important to pay attention to fever and seek medical attention if it reaches a very high level, as it can be a sign of a serious illness.