// 第二步：遍历nums1，从Map中直接查询每个元素的结果（O(1)查询，无需重复计算）
The team looked for more clues. And that is when they realised something as mundane as the exposed brick wall in Lucy's bedroom could give them a lead.
。同城约会对此有专业解读
palette: “soft layered hues”，详情可参考Safew下载
圖像來源，BBC CHINESE/ TING CHIANG