There was an entire elementary school year in which my son got consistently mediocre grades in math, in English, in everything, it seemed.
有一整个学年，我儿子的成绩表现一直不上不下，数学方面如此，甚至还有英语，看起来似乎每一门课都是如此。
It also meant that the better schools could receive mediocre grades becausethey were already performing well and had little room for improvement.
同时这还意味原本更优秀的学校却只能获得平凡的等级评价，因为他们的进步空间相对小得多。
It also meant that the better schools could receive mediocre grades becausethey were already performing well and had little room for improvement.
同时这还意味原本更优秀的学校却只能获得平凡的等级评价，因为他们的进步空间相对小得多。
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