作业帮什么是交通灯,用英语怎么回答
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什么是交通灯,用英语怎么回答
什么是交通灯,用英语怎么回答
什么是交通灯,用英语怎么回答
Traffic lights are the lights that inform you when you should go and when you should stop.
what is traffic light?
traffic lights.
就是红绿灯。
what is the traffic signal light?
A set in the in the middle of the crossroads can illume 3 various colors among the red, yellow and green each time.