当我在五年级的时候，我搬到了乡间。

When I was in the fifth grade, I moved to the country.

youdao

他参加童子军，在五年级的时候获得拼字比赛亚军。

He joined the Cub Scouts and placed second in the fifth grade spelling bee.

youdao

在五年级的时候，我开始学习BASIC计算机编程，所以遇到了更多的问题。

When I was in the the fifth grade, I started learning BASIC computer programming, so that exposed me to even more problems.

youdao

My name is Maria D'Itria, and I teach 5th grade class at the Harvard Kent School in Boston.

我叫玛利亚。狄翠娅,我在波士顿的哈佛肯特学校教授五年级课程。

麻省理工公开课 - 媒体、教育、市场课程节选