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Walk on the road, people will according to the instruction from the solar traffic lights, walk or dr..

With the development of new technology, there is an increasing demand for energy, in this case, we a..

Followed the wisdom of the city gradually, driven by high lamp, traffic lights, etc all aspects in i..

Believe that your children must have played the game of "traffic lights", you also must kn..

Driving on the road, will inevitably encounter traffic accident ~ ~Scratch out ~ ~ rear-end collisio..

The installation of traffic lights turn left hander to area set the matters needing attentionLeft th..

In People's Daily life at home and abroad, the common traffic lights are made up of three colors..