translation.en: Now, with the topic: There's a whole range of topics you can choose, but you should choose wisely, because your topic strongly correlates with how users will react to your talk.
translation.zh: 你可以选择的命题范围很广， 但是你要很明智的去选 因为你选择的题目 将紧密关系到观众很如何看待你的演讲