除非processpurchaseorder活动正在运行，并且控制流程已经到达两个接收呼叫行动，否则这些操作将不会被接收。

These operations will not be accepted unless the processPurchaseOrder activity is running and the flow of control has reached the two accept call actions.

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请注意除非processpurchaseorder活动正在运行，并且控制流程已经到达两个接收呼叫行动，否则这些操作将不会被接收。

Note that these operations will not be accepted unless the processPurchaseOrder activity is running and the flow of control has reached the two accept Call actions.

youdao

任何应用程序都可以侦听这些事件并当接收到这些事件时执行动作。

Any application can listen to these events and perform actions when they are received.

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