英语翻译1、边际成本曲线（marginalcost）和平均成本曲线都呈U形2、这是边际收益递减规律（diminishingreturns）造成的3、边际收益递减规律的内容是：短期内,在其他条件不变时,随着一种可变

Question

英语翻译
1、边际成本曲线（marginal cost）和平均成本曲线都呈U形
2、这是边际收益递减规律（diminishing returns）造成的
3、边际收益递减规律的内容是：短期内,在其他条件不变时,随着一种可变要素投入量的增加,它所带来的边际产量先是递增的,达到最大值后再递减.
4、边际成本曲线和平均成本曲线都是先为递增曲线,最后变为递减曲线,即所谓的U形.
注：可意译,每句话翻译种类越多越好!

Answer 1

1.The marginal cost curve and the average cost curve are both tend to be like the shape of U.
2.It attributes to the law of diminishing returns.
3.The law of diminishing returns means: In a short period, with other condition constant,when only one variable input increases, the marginal output firstly increases and decreases after reach the maximum.
4. The marginal cost curve and the average cost curve have upward trend at first and downward at last. It is the U curve that I have mentioned above.