A lot of the features you yourself use in Facebook these days are very much dynamic.

许多你在Facebook中使用的,特征功能都是极具动态的。

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If you and I are Facebook friends, or we are following each other on Twitter,

如果我们是脸书上的好友，我们在推特上也互粉，

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But if you've looked at more recent or if you've looked at friends who relatively recently signed ID up for Facebook, their profile IDs which you sometimes see in the URL are actually pretty long and that's because I believe at some point they did transition longlong to 64-bit values which tend to be called long longs.

但是如果你看过最近的【听不见】,如果你访问了最近在Facebook上留言的朋友,你会发现，可以从URL上看到他们的配置文件,很长很长，那是因为,可能在某个时间点，他们已经过渡到,64比特了，也就是所谓的。

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