This is why most legacy Comet solutions simply use long-polling.
这也是为什么大多数遗留Comet解决方案简单的使用长轮询的原因。
An alternative to this technique is long polling, which can avoid both these problems.
该技术的另一种方案就是长轮询，可以避免这两个问题。
Another common technique is long polling.
另一个常见的技巧是长轮询。
However, long polling also has its limitations.
然而，长轮询也有其自己的局限性。
There were long lines at many polling places around the US Tuesday.
周二美国众多投票点排起了长龙。
There were long lines at many polling places around the US Tuesday.
周二美国众多投票点排起了长龙。
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