Refrigerators are costly and they need electricity.
电冰箱是十分昂贵的而且也需要电。
But for many of the world's poor, finding a good way to keep food cool is difficult. Refrigerators are costly and they need electricity.
而对于世界上的许多穷人来说,寻找冷藏食物的办法很难,冰箱成本高,需要耗电。
When couples separate, they need more rooms, more electricity and more water, which increases their greenhouse gas emissions, he said.
他说,夫妇离异后,需要更多房间,消耗更多电和水,这会加大温室气体排放。
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