Cách sử dụng
The expression "a matter of life and death" is used to describe a situation that is extremely important and urgent. It usually refers to situations where someone's life is at risk or where the outcome of a situation could have serious consequences. For example, if a doctor says that a patient's surgery is a matter of life and death, it means that the patient's life is at risk and the surgery is critical. The expression can also be used to describe other serious situations, such as a job interview or an important exam.