朱教授解释说，分数线的最大意义其实只是用作学校之间参考，对于同一个学校而言，对于考生而言，意义是不大的。
Professor Zhu explanation says, the greatest sense of fractional line just USES as actually consult between the school, to same the school, to examinee, the meaning is not big.
由于全年都有数据覆盖，对于同一个老师的授课信息，整个学校甚至是整个市区的教育信息你都能了如指掌。
And you could aggregate the information of all the classes taught by one teacher, of an entire school or even district, with data covering a whole year.
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