公交车配备了响应器，在接近红绿灯的时候令绿灯亮起。
The buses are equipped with transponders that turn lights green as they approach.
如果你把这电线和红的那根连结起来，绿灯就会亮起来。
If you connect this wire to the red one, the green light will turn on.
如果你把这电线和红的那根连结起来，绿灯就会亮起来。
If you connect this wire to the red one, the green light will turn on.
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