Cách sử dụng
The expression "have seen/known better days" is used to describe something or someone that was once good, but is now old or in poor condition. For example, if you see an old car that is rusted and falling apart, you might say "That car has seen better days." It can also be used to describe a person who is not as healthy or successful as they used to be. It is important to note that this expression is usually used in a negative way, suggesting a decline or deterioration from an earlier time.