不仅仅是为省钱。Summer air-conditioning is one of the ..
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• most significant electricity demand items, and source of wastes -煮鸡蛋- ♂ (0 bytes) () 07/16/2019 postreply 14:24:52
• ..and source of CO2 emission... -煮鸡蛋- ♂ (0 bytes) () 07/16/2019 postreply 14:26:02
• 一些钱可能对某些不是大事,可这个地球可是人人的极大事,对吗? -煮鸡蛋- ♂ (0 bytes) () 07/16/2019 postreply 14:27:09