变化的建筑法规，不断发展的品味，加上保养这些美丽而老旧的指示牌所需的高昂成本，都让商家们更欢迎 LED 灯，虽然 LED 灯节省能源，但是成本依然很高。

Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient, but still carry great cost.

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在北京大学一栋老建筑里，一盏黄色的灯照亮了古老而黑暗的夜晚。

In an old building in Peking University, a yellow light shone into the old and dark hours of the night.

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这场盛大的展览共展出了400多件上世纪的经典设计作品，其中包括椅子、灯、建筑模型、画作、照片和电影等。

The ambitious exhibition features more than 400 objects including chairs, lamps, architectural models, paintings, photographs and films.

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