常见例句双语例句Alvin Hansen and Paul Samuelson constructed equations to predict how a rise or fall in spending in one part of the economy would propagate across the whole of it.阿尔文·汉森和保罗·萨缪尔森构建了一些描述经济体某一部分支出的涨跌如何扩展至整个经济体的等式。 返回 paul hansen