名词中文翻译
中文翻译：副级
同义词：
['subordinate grade', 'lower grade']
例句：
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1.The subgrade is the lowest level of a school's academic system.
副级是学校学术体系最低的级别。
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2.The subgrade students are still learning basic skills.
副级学生还在学习基本技能。
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3.The subgrade teachers need to improve their teaching methods.
副级教师需要改进他们的教学方法。