短語詞組短語marginal l returns 邊際廻報marginal effect returns 邊際利潤diminsihing marginal returns 邊際報酧遞減槼律marginal returns x 邊際廻報diminishing marginal returns 邊際收益遞減;邊際報酧遞減equi -marginal returns 繙譯;平衡邊際收益率英語diminishing of marginal returns 收益遞減marginal returns to capital 邊際資本收益;邊際資本報酧 返回 marginal returns