I was punched by a classmate one day after the school was over.

一次放学后，一个同学在教室里把我打了。

youdao

One day, wind blew hard and trees shook from side to side in the wind on her way home after school.

一天，在她放学回家的路上，风刮得很大，树在风中摇摆。

youdao

I don't know what made me decide to try some new activities at the new school, but one day I chanced to show up for an after-school meeting of the Science Olympiad team.

我不知道我是出于什么原因决定在新学校尝试一些新的活动，但有一天，我碰巧参加了科学奥林匹克竞赛队的课后会议。

youdao

Rahman Branch, the school principal, says one change was to increase activities after the school day.

VOA: special.2011.06.23

Guan's father, who introduced his son to the game when he was a toddler, picks him up after school every day for the one-hour trip to Lion Lake.

WSJ: Guan Tianlang: A Schoolboy Steals Day One of the Masters

One day after school Maritza cornered Oscar behind the swing set and laid down the law, It's either her or me!

NPR: Diaz's First Novel Details a 'Wondrous Life'

One day after school, I went to the store where he worked.

NEWYORKER: Mr. Bones