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》

There are more extracurricular activities in high school than in middle school.

高中的课外活动比初中多。

youdao

Which middle school or high school did you study?

你曾经在哪所初中或是高中学习？

youdao

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

VOA: special.2009.11.27

From there, after high school, I went to New York University. I completed bachelors of Middle-eastern and Islamic studies and political science.

在读完高中以后，我去了纽约大学，拿到了,中东和伊斯兰研究以及,政治学的学士学位。

普林斯顿公开课 - 人性课程节选

Like back in middle school and high school.

大概是在初中和高中时期。

和英文专业的朋友 - SpeakingMax英语口语达人

One school campus was obliterated, and on the eve of 1, 500 students returning to class for the first time since Wednesday's blast, Superintendent Marty Crawford said the high school and middle school could also be razed.

NPR: Prayer And Waiting In Texas Town Rocked By Blast

Instead we need to be doing what an increasing number of schools like another Arizona-based school, the Carpe Diem Collegiate High School and Middle School, are doing and disrupting that flawed paradigm by implementing online learning to create a student-centric system not to increase costs for the community through bond measures or otherwise, as the article reports but to use existing resources to prioritize student learning and achieve great results.

FORBES: Cramming Computers: It's Still the Same Old Story

The town's high school and middle school, also close to the fertilizer plant, sustained heavy damage as well.

CNN: Texan town tries to rebuild with community, spirituality