Cách sử dụng
Asphalt is a black, sticky substance that is used to make roads and driveways. It is a mixture of sand, gravel, and oil that is heated up and spread on top of the ground. People use asphalt to make a smooth and durable surface for cars and bicycles to travel on. You can see asphalt on the road when you are driving, and you may walk or ride your bike on it too. If you are talking about a road, driveway or any surface made of this material, you can use the word 'asphalt'.