灯杆英文名：Lighting Pole, 按材质可分为铁灯杆，玻璃钢灯杆，水泥灯杆，铝合金灯杆。
... lamp plug ==> 电灯插头 lamp post ==> 灯杆 lamp reflector ==> 灯管反射器,灯光反射器,车灯反射镜 ...
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比如，为什么不在交通灯杆上安装监控摄像机来防止人们闯红灯呢？
Like if people jump the traffic lights, I don't know why there isn't a camera at the traffic lights to stop people from doing that.
例如，我不知道为什么不在交通灯杆上安装监控摄像机来防止人们闯红灯呢？
Like if people jump the traffic lights, I don't know why there isn't a camera of the traffic lights to stop people doing that.
利用库存左侧灯杆的绳子。
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