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Unlike high-technology solutions to reducing energy use, like light-emitting diodes in lamp fixtures, white roofs have a long and humble history.

不同于其他一些高科技的降能措施，譬如发光二极管的灯泡，白色屋顶有着漫长和不起眼的历史。

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The light from the lamp opposite our door caught the white curve of her neck, lit up her hair that rested there and, falling, lit up the hand upon the railing.

对门的灯光勾画出她脖子的曲线，照亮了倚在那里的头发，光线滑落，又映亮了她放在栅栏上的手。

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