Cách sử dụng
A river is a big stream of water that flows through land. It is a natural water source that is essential for plants, animals, and people to survive. You may find a river near your home or when you travel to a different place. You can use the word 'river' when you want to talk about a long and wide body of water that flows from one place to another, and it is bigger than a creek, stream or brook.