In his talk at Washington's Brooking Brookings Institution, Summers spoke of the psychology of fear. 萨默斯在华盛顿布鲁金斯学会演讲时提到恐惧得心理学。
In his talk at Washington broking insistitution. Washingtons Brookings Institution, Summers spoke of the phycology psychology of fear. 在华盛顿布鲁金丝会上，夏天谈到了恐惧心里学。