The move from elementary school to middle school or junior high can be difficult.

从小学进入中学或者初中的这种变动可能会有困难。

《柯林斯英汉双解大词典》

Now that her daughter is attending private boarding school, being groomed for entrance exams for an elite junior high school, Chen has gone back to work as a middle manager in an oil company.

如今，她的女儿就读于私立寄宿学校，正在为进入一所顶尖初级中学准备入学考试。陈女士本人已经重返工作岗位，在一家石油公司担任中层经理。

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Natalie, a high-school junior who started cutting in middle school, explains that it was a way to distract herself from feelings of rejection and helplessness she felt she couldn't bear.

娜塔莉是一个高中的低年级学生，初中时开始切割，解释说，这是一个分散被拒绝和无助感的方式，她觉得她自己承受不了这些感受。

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Facebook with 500 million users, but it's just a scripting language that any 12-year-old kid in high school or junior, middle school, whatever it is, could create the same type of application.

FORBES: Intelligent Investing Transcript

Katy Butler, a seventeen-year-old high-school junior in Ann Arbor, Michigan, who had a finger broken by kids when she was in middle school, began an online petition drive to fight the M.

NEWYORKER: Kids at Risk