to conserve energy

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  • un.节约能源
  • Web使能量守恒;全部关闭
un.
1.
节约能源

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Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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