Extracurricular names the things a student does at school or college that are not the lessons in the course — the club, the team, the play, the volunteer group.

Extracurricular names the things a student does at school or college that are not the lessons in the courseExtracurricular指的是學生在學校或大學裡做的、但不是課程裡的課的那些事 — the club, the team, the play, the volunteer group像社團、球隊、戲劇表演、志工團體。

The course itself is the curriculum; extra- here means outside, so the word is outside the course. Though actually, schools still organise these things, and they often sit on a student's record next to the grades, so they are not extra in the sense of unimportant.

The course itself is the curriculum課程本身叫做curriculum; extra- here means outside這裡的extra-意思是「在……之外」, so the word is outside the course所以這個字就是「在課程之外」。Though actually不過其實, schools still organise these things學校還是會安排這些活動, and they often sit on a student's record next to the grades而且它們常常會跟成績一起出現在學生的紀錄裡, so they are not extra in the sense of unimportant所以並不是「不重要」意義下的「多出來的」。

It is mainly an adjective (extracurricular activities), and sometimes a noun for the activities themselves. Teachers, parents, and application forms use it; students themselves often just say clubs or after-school activities.

It is mainly an adjective它主要是形容詞 (extracurricular activities)（extracurricular activities課外活動）, and sometimes a noun for the activities themselves有時候也當名詞，指這些活動本身。Teachers, parents, and application forms use it老師、家長和申請表都會用這個詞; students themselves often just say clubs or after-school activities學生自己則常常只說clubs社團或after-school activities課後活動。