信号灯显示有危险。
另外在轿厢内外均要有信号灯显示电梯运行方向及楼层数。
Also in the Cabin have both inside and outside lights show the direction of the lift and a few floors.
“信号灯派对”指参加聚会的客人会穿不同颜色的衣服来显示他们的感情状况。
A stoplight party is a party at which guests wear different colors indicating their relationship-seeking status.
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