在流量红利尚在的阶段，交易规模的扩张可以掩盖效率与分配问题；但当新增用户放缓、使用频率趋稳，平台增长就不可避免地从规模扩张转向单位变现。这一转变，使抽佣的性质发生了变化。它不再只是对撮合价值的回报，而逐渐承担起补增长的角色。
Acceptable use policy，推荐阅读服务器推荐获取更多信息
Flight controllers at Nasa working out how to get the crippled Apollo 13 back to Earth.。爱思助手下载最新版本对此有专业解读
Jones said he "didn't sleep for two nights" after the ceremony was broadcast.
backend systems. Ultimately, as so often happens, it may have been IBM's success