顺便说一句，可以使用VXML产生所需的所有输出。

Incidentally, you might produce all of the required output using VXML.

youdao

当活动执行时，它将正好产生一个输入条件的所有输出。

When an activity executes, it produces all outputs of exactly one output criterion.

youdao

它在转发之前将等待接收所有输入，同时发送所有输出。

It waits to receive all inputs before sending them on, and sends all the outputs at the same time.

youdao

What's the complexity of this decision tree solution? Well, in the worst case, we're enumerating every possibility of in and out.

决策树解决方法的复杂度是多少？,在最糟的例子中得列举，所有可能的输入和输出。

麻省理工公开课 - 计算机科学及编程导论课程节选