traffic signal
US /ˈtræf.ɪk ˌsɪɡ.nəl/
UK /ˈtræf.ɪk ˌsɪɡ.nəl/

名词
1.
交通信号灯, 红绿灯
a set of automatically operated colored lights, typically red, amber, and green, for controlling traffic at road junctions
示例:
•
The traffic signal turned red just as I reached the intersection.
就在我到达十字路口时,交通信号灯变红了。
•
Drivers must obey every traffic signal to ensure safety on the road.
驾驶员必须遵守每一个交通信号,以确保道路安全。
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