曼昆在《经济学原理》一书中讲过一个有趣的故事:美国总统杜鲁门希望找到一个“独臂”的经济学家作为自己的决策顾问,因为每当他请经济学家们为自己的经济政策提出建议时,这些经济学家总是会做出类似这样的回答:“一方面……另一方面(On the one hand,…On the other hand.…)”。在英语中,表示短语“一方面……另一方面”中“方面”的意思,用的单词是“手”.杜鲁门用很幽默 Mankun told an interesting story in Principles of Economics: U.S. President Truman wants to find a “one-armed” economist as his own adviser because whenever he calls economists On the advice of their own economic policy, these economists will always make a response like this: “On the one hand, ... On the other hand. ...” “. In English, the phrase ”on the one hand ... on the other hand“ in the meaning of ”as“, the word used is ”hand." Truman used a very humorous