急求这几个经济学英语翻译，求高手翻译谢谢！ 十分感谢

The introduction of community indifference curves into the trade model permits International Economics 5 two questions to be answered: (1) At what point on its production possibilities curve will a country choose to locate in the absence of trade?对社会无差异曲线将允许国际贸易模型引入经济学5两，回答问题：（1）在什么就其生产可能性曲线点将一个国家选择定位在贸易的情况下？ (2) At what point along the terms-of-trade line will a country choose in a trading situation? （2）在什么条件沿对贸易行点将一个国家选择一个交易情况？ 3.Under increasing cost conditions, the slope of a country's production possibilities curve, which indicates the relative cost of one product in terms of another product, varies at each point along the curve. 3.Under增加成本的条件下，一个国家的生产可能性曲线，这表明了一个产品的成本相对其他产品而言，坡度变化曲线在沿线各点。 In autarky, a nation is in equilibrium when its community indifference curve is tangent to its production possibilities curve.在自给自足，一个民族是当它的社会无差异曲线相切的生产可能性曲线的平衡。 Two nations having identical production possibilities curves, but different community indifference curves, would have different equilibrium points and therefore different price (cost) ratios for the two goods.两个国家有相同的生产可能性曲线，但不同的社会无差异曲线，将有不同的平衡点，因此，不同的价格（成本）为两种商品的比率。 4. 4。 The gains a country enjoys from free trade depend on the equilibrium terms of trade, which is determined by world supply and demand conditions.一个国家的收益从自由贸易享有依赖于贸易，它是由全球供应和需求状况决定的均衡条件。 By recognizing only the role of supply, Ricardo was unable to determine the equilibrium terms of trade.通过承认只有供应的作用，里卡多是无法确定的贸易平衡条件。 7. 7。 If a nation is to enjoy gains from trade, it must be able to sell its export product overseas at a higher price than could be obtained domestically.如果一个国家从贸易中获得享受，它必须能够以更高的价格卖出可以得到比国内产品出口海外。