Cách sử dụng
The expression "back out" means to withdraw from an agreement or promise that you made. For example, if you agreed to go on a trip with your friend but then decided you couldn't go, you would be "backing out" of the plan. In a more physical sense, it can also mean to move backwards out of a space or situation. For instance, if you accidentally walked into a room and realized it was the wrong one, you could "back out" of the room to leave.