Cách sử dụng
The word 'boulder' refers to a large, rounded rock that is usually bigger than a person. It can be used when talking about rocks that are found in nature, such as those in a stream, on a mountainside or in a rocky landscape. People might also use the word 'boulder' to describe a rock that is used for decorative purposes, such as in a garden or landscaping project. It's important to remember that 'boulder' is a specific type of rock and not just any large rock.