Cách sử dụng
The expression "through and through" means completely or thoroughly. It is used to describe something that has been thoroughly examined, understood or experienced. For example, you might say "I know him through and through" meaning that you know him very well or "He is a sports fan through and through" meaning that he loves sports completely. It is often used in complimenting something or someone to emphasize how much you know about it or the extent of the love one holds for something.