Cách sử dụng
The word 'waste' can be used to describe something that is not used properly or effectively. For example, if you throw away food that could have been eaten, that is a waste. Or, if you leave the lights on all night when no one is in the room, that is also a waste of energy. In general, 'waste' is used to describe things that are not being used in the most efficient or productive way.