For the moment, Facebook is the top mobile social network destination, especially among young people.

目前Facebook仍是最大的社交网络，尤以年轻用户居多。

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Packet Internet Groper a program used to test whether a particular network destination is online, by sending an Internet control message protocol echo request and waiting for a response.

包因特网查询工具用于通过发送一个Internet控制消息协议回送请求并等待应答来测试一个特定网络目的地是否联机的一种程序。

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There is also a network of dirt airstrips, which was fortunate for me, as I had no time for the two-and-a-half week trek to my destination.

这里还有一个布满灰尘的机场跑道网，我还是觉得庆幸，因为我没有时间长途跋涉两周半到达目的地。

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Make sure it has a link associated with it by switching the Public Website slider to "on, " then hit "Share Link" and select your preferred social network destination.

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VacationRoost has been a pioneer in this concept, creating a network of Destination Experts who accept incoming calls from prospective travelers and help them choose and manage every aspect of booking a vacation rental from finding the perfect home, arranging air and ground transportation, and even recommending local events and great restaurants.

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Davison won't disclose how many people have signed up for Highlight to date, but our tests in London this week revealed a relatively thin pool of users. (For context, another fledgling rival, Banjo, hit 1 million users in April.) He appears to be some way off from the fabled "critical mass" at which a network becomes an attractive user destination.

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