Theatre tickets and other low-carbon gifts are in vogue, and eco-friendly websites are also encouraging gift givers to offer time and services instead of stuff.
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据环保网站“树木拥抱者”说，这批圣诞树还有效利用了树上的精巧型荧光灯泡来贮存能量。
The Christmas tree lot is also trying to conserve energy by using compact fluorescent light bulbs on all of their trees, according to Treehugger.
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