outdoor education 户外教育

International Mathematical Olympiad 国际数学奥林匹克/奥数

overseas trip 海外旅行

package tour 跟团旅游

DIY tour 自助游

weight loss program 减肥训练

military training 军训

language learning 语言学习

training base 培训基地

summer camp 夏令营

summer camper 参加夏令营的人

extra-school activities 课外活动

outward bound/development 拓展训练

wilderness exploration 野外探险

continuation class 补习班

practical training 实习

interest group 兴趣小组

dancing class 舞蹈班

instrument class 乐器班