红绿灯英语怎么说
导读：
trafficlights例句：...
红绿灯英语：traffic lights
例句：
- At the intersection, you need to pay attention to the traffic lights.
- When the traffic lights turn green, you can go ahead.
- The pedestrian should wait for the green light at the traffic lights.
- The traffic lights are controlled by a computer system.
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