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1·Paul Radin contended that investigators rarely spent enough time with the tribes they were observing.

Paul Radin 认为，调查人员很少花足够的时间在他们所观察的部落上。

2·Going further, Dr Radin Umar said that other measures to green up the varsity included the upcoming installation of meters which monitored the usage of electricity and water at each main building.

更进一步，双色球开奖结果雷丁博士欧麦尔说，绿了校队的其他措施包括在每个米，主体建筑监测的电力和用水即将安装。