This decade will see cities replace street lighting with LEDs that last longer (by years) and can intelligently dim themselves when there is no traffic, reducing energy use and light pollution.

在下一个十年，我们将看到各大城市改用LED进行道路照明，其持续时间更长（多出数年），而且在没有车辆和行人时能智能地降低亮度，从而降低能源消耗、减少光污染。

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