You can find more information about outer space in the eighth unit of Smart Science.
你可以在《智能科学》的第八单元中找到更多关于外层空间的信息。
See the appendix for more information about unit testing.
请参阅 附录,以了解更多关于单元测试的信息。
In this situation, a voice response unit can reduce the cost of customer service by providing information and simpler or more common transactions.
在这种情况下,可以使用一个语音应答系统为比较简单或常见的问题提供信息,这会减少客户服务的成本。
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