translation.en: Some of you have heard the story before, but, in fact, there's somebody in the audience who's never heard this story -- in front of an audience -- before, so I'm a little more nervous than I normally am telling this story.
translation.zh: 你们中有些人已经听说过这个故事， 不过在座的有些听众也确实 未曾听过。以前从未现场面对着观众讲这个故事， 所以比起平常我多少有点紧张。