Cách sử dụng
The expression "upside down" means that something is turned the opposite way or direction than it should be. For example, if you turn a glass upside down, it means that the bottom of the glass is facing upwards, which is not how it should be. You can use the expression "upside down" to describe things that are not in their correct position or order. For instance, if you see a room that has been turned upside down, it means that everything in the room has been moved or displaced. Overall, "upside down" is used to describe things that are inverted, backward, incorrect, or disarranged from their usual or proper position.