这些将长网址缩写为短网址的服务，通常将点击者重定向回原网址。

These take long URLs and turn them into shorter ones that usually redirect people back to the original.

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ly是一个在线短网址应用服务，它允许您在将某篇网文的网址缩短的同时，附上个人对该网页的概括或备注，然后将该链接分享出去。

Snip.ly is a URL-shortening service that also allows you to include snippets, or summaries, of the article you are linking too.

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