We haven't been in the same classes, sports or extra curriculum activities.

我们不在同一个班，也没有参加过同一个体育项目或课外活动。

youdao

I participated in several extra curriculum activities.

我参加了几种课外活动。

youdao

In the second place, from psychological aspect, the majority of children seem to tend to have an unfavorable attitude toward extra-curriculum studies.

第二，从心理上讲，大部分孩子似乎对课外学习没有什么好感。

youdao

The project seeks to incorporate MIL through extra curriculum classes in four Jordanian governorates (4 schools).

UNESCO: OFFICE IN AMMAN

Sex education also needs to be an integrated part of the national curriculum in every school not just an optional extra for interested schools.

BBC: Your comments

One way Thunderbird is addressing that issue is by reformatting its curriculum so it touches three calendar years instead of the usual two, to give students an extra opportunity to tap their employers for funding.

WSJ: Executive M.B.A. Programs Respond to Downturn