Cách sử dụng
"Wake up" is an expression used to tell someone to become conscious after sleeping. You can use it when you see someone sleeping and you want to wake them up. For example, if your friend is sleeping in class, you can say, "Hey! Wake up, class is starting!" or if your parents are still sleeping and you need to go somewhere, you can say, "Mom, Dad! Wake up, we need to leave soon!" It's a simple way to let someone know that it's time to be alert and attentive.