Cách sử dụng
The word 'while' can be used to talk about two things happening at the same time. For example, "I listened to music while I did my homework". It can also be used to talk about a period of time. For example, "I studied for an hour while my friend watched TV". You can use 'while' when you want to describe two actions that happened at the same time or when you want to talk about a specific time period. Remember to use 'while' followed by a verb to describe the action that happened during that time period.