金属杆上
On a metal pole
以上为机器翻译结果，长、整句建议使用 人工翻译 。
他低下了头来缓解脖子的疼痛，眼睛停留在脚下生锈的铁链上，那铁链绕在一根金属杆上。
He looked down to relieve the pain of his neck, and stared at the rusty chain at his feet, which coiled around a metal rod.
youdao
两条金箔固定在一根细金属杆上。
Two thin strips of gold are fastened to a narrow metal rod.
To hammer or cut (metal) into thin leaf or foil.
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