名词
中文翻译：年级数
同义词：
['grade number', 'grade level', 'grade point average (GPA)', 'class rank']
例句：
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1. The teacher asked us to calculate the No. of grade for each student.
老师要求我们计算每个学生的年级数。
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2.She was awarded a No. of grade for her outstanding performance in the competition.
她在比赛中的出色表现获得了年级奖。
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3. The students are ranked by their No.of grades in the school's annual report.
学生们根据他们的年级排名在学校的年度报告中。