in the world 〈口〉 1. 世界上，天下 He was the most retiring man in the world. 他是世界上最不爱交际的人。 2. 竟然，到底，究竟 How in the world can you say that? 你怎么竟然说那种话? Who in the world was it? 这到底是谁? Where in the world did you find that necktie? 你究竟是在哪里找到那领带的? A:Do you think he will agree to come to our party? B:Never in the world. 甲：你认为他会同意参加我们的舞会吗? 乙：决不会。