For another random sample of passersby,however,we began with an even larger request: to serve as an unpaid counselor at the center for two hours per week for the next two years.

• 然而在另外一个同样随机选择路人的调查中，我们先是提出一个更加难以做到的请求：在今后的两年中作为感化中心的辅导员每周无偿工作两个小时。