And I would like to make a case to you that over the years since we first developed atomic weaponry, until this very moment, we've actually lived in a dangerous nuclear world that's characterized by two phases, which I'm going to go through with you right now.
我想给大家举个例子 从核武器被发明以来的这些年间 直到此时此刻 我们其实一直生活在一个危险的核世界 这可以分为两个阶段 我现在和大家一起来回顾一下