我把这个问题提给了卡罗尔，她是布鲁克林学院的幸福经济研究员。

I posed this question to Carol Graham, a Brookings Institution researcher who studies the economics of happiness.

youdao

我把这个问题提给了卡罗尔，她是布鲁克林学院的幸福经济研究员。

I posed this question to Carol Graham, a Brookings Institution researcher who studies the economics of happiness.

youdao