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》

The city's public high school, as well as a number of daycare centers, preschools, elementary and middle schools, fell in the lowest 10%.

该市的公立高中，以及一些日托中心、幼儿园、小学和中学的排名跌至最低的10%。

youdao

A survey done by the China Youth and Children Research Center showed that school accidents kill more elementary and middle school students than anything else.

中国青少年研究中心的一项调查显示，学校事故是导致小学生和中学生死亡的最大原因。

youdao

Programs begin in elementary school and continue through middle and high school.

VOA: special.2009.11.27

The program includes educational materials, codes of conduct and good behavior pledges, and the approach is individually tailored for athletes in elementary school, middle school and high school.

WSJ: Ref's death a consequence of lack of sportsmanship

This Northwest Cluster event was sponsored by Great Seneca Creek Elementary School PTA, Matsunaga Elementary School PTA, Kingsview Middle School PTA and Roberto Clemente Middle School PTA. The PTAs in the Northwest Cluster of Montgomery County Public Schools are also looking to pilot a curriculum on bullying prevention through the Arts and Humanities Council of Montgomery County.

WHITEHOUSE: Susan burkinshaw | The White House

She had the unique ability to help children in elementary and middle school recognize and develop their musical abilities and confidence.

FORBES: A Mother's Day Tribute To A Musical Mom