单词 | traffic lights |
释义 | traffic lights/ˈtrafɪklʌɪts /(also traffic light or traffic signal) plural noun A set of automatically operated coloured lights, typically red, amber, and green, for controlling traffic at road junctions, pedestrian crossings, and roundabouts.As this study focuses on urban areas, a bunch could normally mean a cluster of vehicles released from an upstream traffic signal during the green time....
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