Cách sử dụng
The word 'flag' can refer to a piece of cloth with a design on it that represents a country, group, or organization. It can also mean to signal or identify something, or to mark something as important or problematic. For example, you can say "I waved the American flag" to indicate that you were holding and waving a piece of cloth with the American flag on it. Or, you may say "I flagged the email as important" which means you marked the email as important so you can easily find it later.