rod: a long, thin metal or wooden bar; a long straight piece of wood, metal or glass.
☆lightning rod=lightning conductor A lightning conductor is a long thin piece of metal on top of a building that attracts lightning and allows it to reach the ground safely. 避雷针;（找点视频了解一下）
我能想到的常见的中文如鱼竿、登山杖等，罗列如下：
鱼竿 fishing rod
指挥棒、接力棒、警棍都是 baton
指挥棒 conductors' batons, music conducting baton (拓展阅读https://www.wrti.org/post/10-fun-facts-about-conductors-batons)
接力棒 passing the baton
警棍 police baton
登山杖 alpenstock
手杖 walking stick
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