，
对;Given the distance between my previous role as a convention gate-crasher and my newfound role as convention keynoter, I had some cause to worry that my appearance in Boston might not go very well.
我在上届大
角色是擅闯场者，而这届大是主
发言人，由于这两个角色巨大差距，我有一定理由担心，我在波士
场也许不十分成功。
观点；若发现问题，欢迎向我们指正。
