I saw a lot of people in qq, such as selling shops as agents. What does it mean to sell things as agents? Can you make money?

An agent is to sell a product on behalf of others. You don't usually have to pay for it yourself. You just need to send pictures for publicity. If someone buys it, the agent or manufacturer will deliver it directly in the end. If there are some good products, they will buy a certain amount of products at their own expense, so the profit will be higher. You can also act as an agent to earn the price difference of the next agent.