At the start of each iteration, the system availability indicator determines whether to retrieve the next message for processing, or to suspend processing by scheduling a Human Task.

在每次迭代的开始，系统可用性指示器判断是获取下一条消息以进行处理，还是通过安排一个Human Task来暂停处理。

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The start message is output a second time, the second call to suspend returns immediately, and the end message is sent in response.

第二次输出start消息，立即返回对suspend的第二次调用，并且发送end消息进行响应。

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Our message to the leaders of Iran is also clear: Verifiably suspend your nuclear enrichment, so negotiations can begin.

我们向伊朗领导人发出的信号也是明确的：以可核实的方式停止你们的核浓缩计划，以便开始谈判。

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But the immediacy of the message urges us to suspend disbelief.

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