Cách sử dụng
"Rub out" is an expression that means to erase or remove something using a rubbing or wiping motion. You can use this expression when you want to get rid of something that was written or drawn, for example, you can rub out a mistake in a drawing with an eraser or rub out pencil marks on paper with a cloth. It can also be used in a figurative sense, such as when someone is trying to eliminate something negative or harmful from their life, they might say they need to "rub it out."