The act of providing value may be direct, such as selling a useful product or service, or it may be indirect, such as providing a free service and monetizing it via other means.

• 这种提供价值的行为可以是直接的，比如出售一种有用的产品或服务；也可能是间接的，比如提供一种免费的服务，而通过其它方式来把它变为货币。