Cách sử dụng
The phrase "as old as the hills" means something has been around for a very long time. You can use it to describe things that have been around for centuries or things that feel like they have been around forever. For example, you might use this phrase to describe a building or monument that has been standing for hundreds of years, or to describe an idea or tradition that has been around for a very long time. It is a way to emphasize how ancient something seems.