Cách sử dụng
The expression "face down" means to have your face pointing towards the ground or a surface. For example, if you're doing push-ups, you're face down on the floor. Another example might be if you're playing a card game and you put a card "face down" on the table, it means the card is facing towards the table and you can't see what it is. "Face down" is a term that's used in many different contexts, but it always means to have your face or something else facing towards the ground or a surface.