Revenue can be anything that the users have to spend the coins, pay to the developers for virtual goods, network fees, etc.
Sustainability: Revenue > incentives
收入可以是用户必须花费硬币、向开发者支付虚拟商品、网络费用等的任何东西。
可持续性：收入>；激励措施
Revenue can be anything that the users have to spend the coins, pay to the developers for virtual goods, network fees, etc.
Sustainability: Revenue > incentives
收入可以是用户必须花费硬币、向开发者支付虚拟商品、网络费用等的任何东西。
可持续性：收入>；激励措施