教育是以人的参与为主的社会活动。

Education is a social activity primarily participated by man.

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第二，城市规划是一种居民都能参与进来的社会活动。

Second, urban planning is a social activity that citizens can get involved in.

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我们将参与一切社会活动的统称。

We shall take part in all social activities collectively.

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我们将参与一切社会活动的统称。

We shall take part in all social activities collectively.

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