但是这些机器人将不再被当作玩具。虽然有些迟晚，但机器人工程师们已逐渐认识到他们已经错失了一个机会。
They are toys no longer, though, for it has belatedly dawned on robot engineers that they are missing a trick.
如上所述，小工具和机器人(以后的章节您将对机器人有更多认识)都属于扩展项。
As mentioned earlier, both gadgets and bots (you'll learn more about bots in the next chapter) fall under the category of extensions.
机器人可以被看作是一种能够扩展人类工作能力的有效工具，人类在认识和改造世界的过程中不能没有机器人。
Robot can be viewed as an effective extension of human's ability, so it is indispensable in the course of recognition and exploration of the world.
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