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美国杜克大学一项调查表明,小孩只有到了一定年龄以后,做家庭作业才会对学业有帮助。专家认为老师应根据学生的年龄来留作业,比如,
According to a survey conducted by Duke University in the United States, it is only when a child reaches a certain age that doing homework can help with schoolwork. Experts believe that teachers should be based on the age of students to stay homework, for example,