Replaces the church as a major source of information.

代替了教堂成为主要的信息来源。

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For many people television has become a major source of information and entertainment.

对于电视很多人已成为信息和娱乐的主要来源。

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PO is a major source of information for a logistic center, and PO process is a indispensable procedure for a logistic enterprise.

订单是物流中心信息的主要来源，处理订单是物流企业一个不可缺少的环节。

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