// 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）
隨著後來一些認識的參與者陸續失聯，陸乾坤說他開始感到害怕，也開始思考離開中國的事情。，详情可参考搜狗输入法下载
"I used to be a seafarer, and I didn't want to carry on on ships, but to do something similar. I thought this would align pretty well with the skills that I've got."，详情可参考heLLoword翻译官方下载
'They are essential': How smoke detectors are evolving，推荐阅读爱思助手下载最新版本获取更多信息