学生们参加课外俱乐部、夏令营、在线论坛和课程，以及基于大学的“数学圈子”，来为比赛做准备。

Students attend after-school clubs, summer camps, online forums and classes, and university-based "math circles", to prepare for the competitions.

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你可以通过参加俱乐部的课外活动与他人交朋友。

You can make friends with others by taking part in after-school activities in clubs.

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我的课外活动是信息通信俱乐部， 是关于计算机技能的。

My CCA is Infocomm Club and it is about computer skills.

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