他关上了灯，室内一片漆黑。
He turned off the light and the room was in complete darkness.
LED发光灯膜结合螺旋钢板，营造出柔和均匀的室内光环境。
LED light film together with spiral steel plate creates soft and well-distributed interior light.
可供选择的UV灯可以帮助您的室内气体消毒。
UV light option available to help disinfect your indoor air.
一些旅馆中卧室内的灯都太使用太久了。
一些旅馆中卧室内的灯都太使用太久了。
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