Teacher:Which country is the biggest in the world? 世界上那个国家最大? Student:Russia. 俄罗斯. Teacher:Which country has the most people in the world? 世界上那个国家有最多的人? Student:China. 中国. Teacher:Who is the smartest teacher in the school? 本校中那一位老师最聪明? Student:But...you are the only teacher in the school. 但是……你是本校唯一的老师啊. Teacher:I know. 我知道.