例如，- d选项将显示您的通信子系统所接收的、传输的和丢弃的数据包的总数。

For example, the -d option shows the overall number of packets received, transmitted, and dropped in your communication subsystem.

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截止到2007年底，手机用户总数已经超过6亿户，中国已经成为全球最大的移动通信市场。

By the end of 2007, the total number of mobile phone users exceeds 600 million; China has become the world's largest mobile communication markets.

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