形容词
中文翻译：未分级的
同义词：
['unclassified', 'unsorted']
例句：
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1.The ungraded grades are not suitable for beginners.
未分级的等级不适合初学者。
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2.The ungraded grades were used to assess student performance.
未分级的等级被用来评估学生的表现。
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3. The ungraded grades were used to determine the level of proficiency in a particular subject.
未分级的等级被用来确定某个特定学科的熟练程度。