Junior high was always a difficult time for me, and the move made my ninth grade year even harder.

对我来说，初中一直是一段艰难的日子，而那次搬家让我的九年级生活更加艰难了。

youdao

I was a naval officer, lieutenant junior grade.

我曾是名海军军官，中尉军衔。

《柯林斯英汉双解大词典》

He is one of my respected teachers. He taught us history when we were in junior Grade Two.

他是我最尊敬的老师之一。初中二年级的时候他教我们历史。

youdao

When I received the news about Junior, I had just walked out of my daughter's second-grade classroom.

CNN: Junior Seau was hurting and didn't know how to say it

We're excited to reveal the iNuke BOOM Junior - a 1:23 scale model of its powerful predecessor, packed with professional grade components and a 3-way active speaker design.

ENGADGET: Behringer iNuke Boom Junior shrinks a giant iOS dock, won't trigger as many earthquake warnings