traffic signal是什么意思 traffic signal怎么读
traffic signal的英文翻译是什么意思，词典释义与在线翻译
traffic signal的用法和样例
用作名词 (n.)
- Traffic lights have been placed at all major intersections.
所有重要的交叉路口都安装了交通信号灯。 - He learns how to wait for the traffic light to change.
他学习如何等待交通信号灯的变换。 - The driver pulled up at the traffic lights.
司机在红绿灯前把车停住。
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