// 边界处理：nums1为空时直接返回空数组（避免后续无效计算）
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turbulent economic times, the branch became responsible for tracking the balance
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2025年3月，习近平总书记来到侗寨，同村干部和村民代表围坐话振兴，“脱贫之后乡村全面振兴任务同样繁重”“希望乡亲们的幸福生活更上一层楼，把乡村振兴做得更好”。