For many sites, a sitemap is simply a way of being friendly to robots such as search engines.
对于很多站点,提供站点地图只不过是对诸如搜索引擎这类自动机制的支持和友好。
Robots may query human controllers at remote sites for the go-ahead to fire, and friendly forces may carry transponders that identify them as "friends".
机器人可以向遥远的人类控制员请求前行、开火,友军会携带识别敌友的转发器。
No one knows for certain, but most people think that robots will be part of our lives. Will they be friendly or unfriendly?
没有人确切地知道,但是大多数人认为机器人会成为我们生活的一部分,他们将会很友好还是不友好呢?
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