Cách sử dụng
A knoll is a small hill that is usually grassy and rounded on top. Knolls can often be found in fields, parks, or other open areas. It's a word that's used to describe a specific type of hill, rather than just any hill. For example, you might say "Let's have a picnic on top of that knoll over there" or "I love to sit on the knoll in the park and watch the sunset." It's a pretty specific word that's not used all that often, but it can be useful when you want to describe a certain type of hill or landscape feature.