Student: I cannot point out but I know the answer.
Teacher: Please tell us.
Student: The swallow is beside the sparrow and the sparrow is beside the swallow.
老師: 這兒有兩只鳥(niǎo),一只是麻雀。誰(shuí)能指出哪只是燕子,哪只是麻雀嗎?
學(xué)生:我指不出,但我知道答案。
老師:請(qǐng)說(shuō)說(shuō)看。
學(xué)生:燕子旁邊的就是麻雀,麻雀旁邊的就是燕子。