它还应该能够在高可用性环境下工作，以实现随时对请求进行节流和分派。

And it should work in high availability environments, so that requests can always be throttled and dispatched.

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在本文的稍后部分中，您将通过创建执行简单分派的选择器来尝试此操作。

Later in the article, you will try this out by creating a selector that performs a simple dispatch.

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在函数被调用时，使用该函数的参数对一个自定义的分派函数求值。

When the function is invoked, a custom dispatch function is evaluated with the function's arguments.

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The other is that some places where the disease occurs the governments are not stable, or there might be civil unrest or civil wars and that makes it very difficult to orchestrate giving vaccines when there's other things happening in the country that are of more immediate concern.

另一个原因是,一些疾病发生地区,当地的政局不那么稳定,或者有动乱和内战,当在一个国家内发生许多,突发应急事件的时候,疫苗的分派发放会变得非常困难

耶鲁公开课 - 生物医学工程探索课程节选