如果你是在室内行走，留意人们的说话声，脚步声和照明灯具发出的嗡嗡声。

If you're walking indoors, notice the sound of other people talking, the sound of footsteps and the hum of lighting fixtures.

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关闭不必要的照明灯具，室内和室外。安装照明器或传感器自动关闭时不需要灯光。

Turn off unnecessary lighting fixtures, both indoors and outdoors. Install lighting timers or sensors to automatically turn off lights when not needed.

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皇冠式的天花线板，提高面板的室内门，和设计师选择的照明灯具及内嵌式照明。

Crown Molding, Raised panel interior doors, and Designer selected Lighting Fixtures and recessed can lights.

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