Cách sử dụng
The word "crust" is used to refer to the outer layer or surface of something. For example, when you bake a loaf of bread, the top layer that gets crispy and brown is called the crust. The term can also be used to describe the outer layer of the earth, which is called the earth's crust. In general, "crust" is used to describe the top layer of something that is hard or solid.