Due to my busy school and football schedule I never really had time to go fishing.

（后来），由于繁忙的学校生活和足球日程，我几乎没时间钓鱼。

youdao

James is busy practising for the school concert.

詹姆斯正忙着为学校音乐会排练。

《牛津词典》

I was busy with friends at school and visited my parents less and less.

我总是在学校里和朋友们在一起，回家见父母的时间越来越少了。

youdao

"If it's like during school when things are busy, once maybe for like twenty minutes max.

VOA: special.2009.09.14

I'm busy with school. It takes up a lot of my time, so.

我的学业很忙。那占据了我大部分时间。

参加10公里竞走 - SpeakingMax英语口语达人

Since my mother was busy teaching school, somebody had to take care of me.

VOA: special.2010.01.30

On top of her ever-busy school work and purposeful extracurriculars, she applied a substantial amount of focused time and energy to prepare her early application.

FORBES: Advice On Applying to Top U.S. Colleges Via Early Decision or Early Action

You know, I was busy in law school at the time, or studying for the bar.

NEWYORKER: The Conciliator

Friday isn't usually a busy day at the school's mall campus, Ben Kramer, an activities counselor for the community college, told The Roanoke Times.

NPR: Student Charged In Va. Mall Shootings; 2 Wounded