I like to walk alone at night under the lights, especially when a bad mood.

我喜欢独自漫步在夜晚的路灯下，尤其是心情不好的时候。

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When you consider how many street lights there are in the UK alone, it is clear there are some big opportunities for energy and cost savings, " he added."

如果你能想想光英国就有多少路灯，那么你就会清楚在能源和费用节省上存在着多大的机会。

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