student in junior grades 低年级学生
同义词： junior-grade inferior lower-ranking lowly petty(a) secondary subaltern subordinate
以上来源于: WordNet
Staff turnover is particularly high among junior grades.
员工流动率在级别低的职员中特别高。
There are lots of jobs in junior grades.
初级阶段有很多工作要做。
Primary education ran from grades one through six; grades seven, eight, and nine were handled in intermediate or junior high schools.
初等教育是从一年级到六年级；七年级、八年级和九年级由中等学校或初级高等学校所管理。
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