这本书现在的价格是过去的两倍。

The book costs double (of) what it did.

youdao

乙醇通常用作汽油的补充燃料，但它现在的价格是甲醇的两倍，后者的低成本是具有吸引力的特征之一。

Ethanol is commonly used as a gasoline supplement, but it is currently about twice as expensive as methanol, the low cost of which is one of its attractive features.

youdao

汽油现在的平均价格是每加仑3.15美元，仅比去年五月的记录低了七美分。

Gasoline now costs an average of $3.15 a gallon, seven cents shy of the record set last May.

youdao

So we know how prices are set, they're set by the firms, so the next question is where do the quantities come from?

现在我们知道了价格是怎么决定的,它们是由公司决定的,下一个问题是产量怎样得到

耶鲁公开课 - 博弈论课程节选

The red line is the Halifax Home Price Index for greater London we're talking UK now.

红色线表示的是哈里法克斯伦敦住宅价格指数,现在说到了英国

耶鲁公开课 - 金融市场课程节选