在展开说明这个方法之前，我们先看一下实时信息是怎样传递和被接收的。
But before we get to that, let's explore how real-time content is currently delivered and consumed.
在使用内容协商的情况下，虽然两种版本共用同一个URL，但是对人友好的内容与机器可读的内容仍然是完全分开地被接收的。
In scenarios that make use of content negotiation, the same URL is used for both, but the human-friendly and machine-readable content are still received completely separately.
光纤电缆的发展使得每分钟都有数十亿比特的信息被接收。
The development of fiber-optic cables allowed for billions of bits of information to be received every minute.
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