中文：

佣金是指在股票、基金等交易中，由经纪人或证券公司代理客户买卖股票、基金等，并按照成交金额的一定比例向客户收取的费用。简单来说，就是投资者在买卖股票、基金等时需要支付给经纪人的服务费。

佣金的收费标准一般根据不同的交易品种、交易金额和交易方式而有所不同。在股票、基金等交易中，佣金的收费比例一般在0.1%至0.3%之间，根据客户的交易金额和交易量而定。

佣金是经纪人或证券公司为客户提供买卖股票、基金等服务所获得的一种报酬。对于投资者来说，佣金是一种交易成本，需要考虑到投资成本和收益之间的平衡。

英文：

Commission refers to the fee charged to customers by brokerage firms or securities companies for executing trading orders on behalf of customers in stocks, funds, etc. It is usually a certain percentage of the transaction amount. In simple terms, it is the service fee that investors need to pay to the broker when buying or selling stocks, funds, etc.

The charging standard of commission usually varies depending on different trading品种, trading amount and trading methods. In stocks, funds and other transactions, the commission charging ratio is generally between 0.1% and 0.3%, depending on the customer's trading amount and trading volume.

Commission is a kind of remuneration for brokerage firms or securities companies to provide trading services to customers, such as buying or selling stocks, funds, etc. For investors, commission is a kind of trading cost that needs to take into account the balance between investment costs and returns.