Since labor and land are important inputs into the production of Big Macs, these differential costs feed through into the final cost of the burger.

由于劳动力和土地是生产巨无霸的重要投入，由此造成的成本差异会体现在巨无霸的最终成本上。

Good high schools can cost $3,000 for three years, and a high-school-age laborer can earn $150 a month; that’s a cost differential of about $8,400—a fortune for poor peasant families.

在好的高中上3年学，可花去3000美元，而高中适龄劳动者可以赚取每月150元，这是一个约8,400元的成本差异，这对贫苦农民家庭是一笔不小的数目。

The cost differential between fossil-fuel-generated energy and some alternatives is already small, and is likely to come down.

化石燃料产能同某些替代途径产能在成本上的差距已经很小，而且可能会继续缩短。

If it appreciated, this would increase the repayment cost of yen-borrowing and offset the interest differential.

日元升值将增加借入日元的还款成本，抵消利差带来的收益。

It has helped to boost usage with differential pricing: tickets bought for cash cost a lot more than using a smart card.

现金购票比使用智能卡要贵得多，两者的差价促进了卡的使用。