Cách sử dụng
An advertisement is something that companies or people use to promote a product or service. You can see it on TV, in magazines, newspapers, online, or even hear it on the radio. Its purpose is to make people aware of what they are selling and encourage them to buy it. For example, if a company wants to sell a new chocolate bar, they might create an advertisement that shows how delicious and satisfying the chocolate is, so people will want to buy it. So, if you want to learn English, it is important to know this word when you see or hear it in context, as it will help you understand the meaning of a promotion or a marketing campaign.