Consider the task of building a slice of tasks to process:
聚合模式进一步放大了这一问题。聚合平台并不直接创造新的交易空间，而是在既有平台之上叠加新的分发层级。每一层抽成都各自合理，但多层叠加后，整体利润空间被显著压缩，使抽佣的边际收益更早触及上限。
，这一点在快连下载安装中也有详细论述
light.position.set(-1, 2, 4);
Republicans relish chance to question Clintons
"For a long time, roboticists have used DC [direct current] motors to make robots move," says Mike Tolley at the University of California San Diego.