She found that there was a lot of resistance to the purchase of life insurance in the nineteenth century.

她发现19世纪的人们,对购买寿险有很强的抵触情绪

耶鲁公开课 - 金融市场课程节选

What it does for him is allow him to buy his aunt this symbol of a middle-class American domesticity, and he is a happy participant in this new purchase.

这让他能够给阿姨,买这个美国中产阶级家庭生活的象征物，而他也很高兴能这么做。

耶鲁公开课 - 1945年后的美国小说课程节选

If I short the one-period bond it cancels out, so I've made no net purchase in 1925.

卖空一单位一年期债券则刚好抵消,所以我在1925年的净买入为零

耶鲁公开课 - 金融市场课程节选