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sidings sidewise movement

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  • 柯林斯高阶英汉双解学习词典

1. N-COUNT (铁路线的)侧线，岔道 A siding is a short railway track beside the main tracks, where engines and carriages are left when they are not being used. 
2. N-UNCOUNT (建筑外墙的)墙板，壁板 Siding is a wooden or metal covering on the outside walls of a building.