Learn some extra-curricular knowledge.
学习一些课外知识。
Read more books, more than you can add some extra-curricular knowledge.
多读书，可以让你多增加一些课外知识。
In addition, the county also adopted a series of extra-curricular activities to strengthen the knowledge of AIDS prevention education.
此外，该县还通过一系列课外活动强化对预防艾滋病知识的宣传教育。
Regular access to understand the knowledge of extra-curricular physics.
经常上网了解物理学科的课外知识。
Regular access to understand the knowledge of extra-curricular physics.
经常上网了解物理学科的课外知识。
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