Diminishing returns，law of 收益递减规律
Diminishing marginal utility，law of 边际效用递减规律
Diminishing marginal product cause:
I found this very profitable in diminishing the intensity of narrow-minded prejudice.
______was once a very important political institution in Britain while its importance is seriously diminished since the 20th century.
North American fur trade ______ in the early 1800' s mainly due to the diminishing number of fur-bearing animals.
【英译中】The shape of the world is changing almost as dramatically as this city's skyline. Today the cold war is over. The risk of the global nuclear conflict has been greatly reduced and the free flow of goods and ideas is bringing to life the concept of a global village. But just as all nations can benefit from the promise of this new world, no nation is immune to its perils. We all have a stake in building peace and prosperity, and in confronting threats that respects no borders-terrorism and drug trafficking, disease and environmental destruction. To meet these challenges most effectively, China and the United States must act in concert. Some argue that with the Cold War's end, the strategic importance of the US-China relationship has diminished. I believe they have it exactly backwards. As a new century begins, the importance of strengthening the ties between the United States and China will grow even greater.
什么是边际效用递减律（Law of diminishing marginal utility)？
If a production function exhibits diminishing marginal product, its slope
当人们沿着其需求曲线往下移动时，边际替代率递减（） The marginal rate of substitution diminishes as an individual moves downward along the demand curve.
