extracurricular

adj.

学校课程以外的；课外；

extracurricular activity课外活动

1. We should take active part in extracurricular activities.
   我们应该积极参加课外活动。
2. Many children engage in extracurricular dramatics.
   许多小朋友参加课外演剧活动。
3. Nathan has extracurricular activities. He's on the basketball team.
   纳森参加了很多课外活动，他是个篮球队员。　
4. The attorney's work for the legal aid society was extracurricular.
   律师对社会予以合法的援助是业余的

Extracurricular School Activities: The Good, the Bad, and the Nonlinear.
Linking Extracurricular Programming to Academic Achievement: Who Benefits and Why?
Extracurricular research experience of medical students and their scientific output after graduation
Extracurricular activity and ethnicity: Creating greater school connection among diverse student populations.
Is extracurricular participation associated with beneficial outcomes? Concurrent and longitudinal relations.
Extracurricular Involvement and Adolescent Adjustment: Impact of Duration, Number of Activities, and Breadth of Participation
Adolescents' extracurricular participation in context: The mediating effects of schools, communities, and identity.
Influence of extracurricular sport activities on body composition and physical fitness in boys: a 3-year longitudinal study
Developmental Benefits of Extracurricular Involvement: Do Peer Characteristics Mediate the Link Between Activities and Youth Outcomes?
Student council, volunteering, basketball, or marching band: What kind of extracurricular involvement matters?