介紹一種品牌牙膏（要講二分鐘，英文）

We have to brush our teeth twice a day. Therefore, we should choose a good brand of toothpaste. It is very important for us.Which brand of toothpaste do you like best? I prefer the Colgate toothpaste.This brand has a lot of products such as freshing and whitening toothpaste. If you use this brand of toothpaste, you may have beautiful and healthy teeth and you can keep your smile bright. This brand has a new product. It is the extra whitening toothpaste. Because of we always drink tea and coffee or someone likes smoking. Their teeth are too dirty and untidy. This new product can make your teeth white and beautiful. You must try it now. Do not be late!