1. Move your mouse randomly to generate the keys. 移动你的鼠标以便随机生成密钥。
2. In our example, we draw randomly 1000 red points on the client area. 这个例子里，我们随机的在客户区域绘制1000个红点。
3. In these trials, people are randomly assigned to a "treatment" group, which benefits from the project, and a "control" group, which does not. 在此类检验中，人们被随机地指派给一个“治疗”小组（该项目的受益者）以及一个“对照”小组（不是受益者）。
