Another common technique is long polling.

另一个常见的技巧是长轮询。

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However, long polling also has its limitations.

然而，长轮询也有其自己的局限性。

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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。

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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。

youdao