pole

/poʊl/

a long (usually round) rod of wood or metal or plastic

中文释义：杆；柱；极

The tent was supported by a long metal pole driven into the ground.

帐篷由一根插入地面的长金属杆支撑。

Scientists are studying the effects of climate change at the North Pole.

科学家正在研究北极气候变化的影响。