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关注：1
2013-05-23 12:21
求翻译：Do you forget to turn off the lights and heaters when you go out of a room? In 2040 it will not matter. They will turn themselves off and on again when you return. A sensor will detect the presence of a human and turn the systems on, and when the humans leave it will turn them off again.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
Do you forget to turn off the lights and heaters when you go out of a room? In 2040 it will not matter. They will turn themselves off and on again when you return. A sensor will detect the presence of a human and turn the systems on, and when the humans leave it will turn them off again.
问题补充： |
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