threestepadj.三级的threenum.三n.三；三个adj.三个的three-dimensioned mode三维模型three thousand and seven(=3007) 三千零七Three-Scale Separation三时标分离three - step technique三阶梯技术three orthographic views三视图three dimension modeling三维建模three-right separation“三分离”three-phase unbalanced三相不平衡three-layer Web design三层Web设计three-piece windshield三块式风挡

1. If average returns to effort were uniformly reduced by a factor of three, it is not clear why motivation to earn more would be reduced.
   如果努力的平均回报通过三要素之一一致地减少，就不清楚为什么将减少赚钱的动机。