Cách sử dụng
'Must' is a word that shows that something is necessary and important to be done. It is often used when there is a rule or law that needs to be followed. For example, we must wear a seatbelt when driving a car or we must follow the speed limit. It can also be used when talking about something that is really important, like we must study hard if we want to do well on an exam. It is a strong word and should not be used lightly, as it implies that something is compulsory or highly recommended.