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来源:雅诚德英语网
Since it is a catchall phrase for a variety of energy sources, any definition has to be broad.
因为这是一个包涵了多种能源短语,任何定义来概括。
Since it is a catchall phrase for a variety of energy sources, any definition has to be broad.
因为这是一个包涵了多种能源短语,任何定义来概括。