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叶琪和丁小楠是高一的同班同学。教她们的数学老师是一位50开外的姓周的男教师,他身材高大魁梧,平时不苟言笑。入学前,叶琪就听自己的表哥说起过周老
Ye Qi and Ding Xiaonan is a high classmate classmate. The mathematics teacher who teaches them is a 50-plus male teacher of surnamed Zhou. He is tall and burly, and usually stern. Before admission, Ye Qi heard his cousin Speaking weeks old