1. If you want my opinion, extracurricular activities are very useful. ����������ҵĿ����������Ǻ����õġ�
2. Throughout the program, students develop a sense of family through course work, team projects and extracurricular activities. �������γ��У�ѧ��ͨ���γ̿����������Ŷ���Ŀ�Ϳ����ļ�ͥ�С�
3. No matter what the extracurricular books the college students like to read or dislike to read, they are of highly-diversification. ���۴�ѧ��ϲ���Ķ��Ŀ����黹�Ǵ�ѧ����ϲ���Ķ��Ŀ����飬�����ֳ��߶ȶ�������״̬��
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adj.
1. outside the regular academic curriculum
2. outside the regular duties of your job or profession
3. characterized by adultery