As we had had a long walk through one of the markets of old Delhi。第二个had是什么意思，什么用法

是一个词组吗

第二个had是实义动词have的过去分词have a long walk走了很远的路。第一个had是过去完成时中的助动词，

have a talk 是词组谈话的意思 这里是过去完成时 have + 动词过去分词，所有就成了 had had a long talk 额，刚才看错题了，把 walk 看成了 talk 悲催呀！ 希望能够帮到你 \(^o^)/~

as 连词，连接一个时间状语从句 主语 we 谓语 had had 宾语 a long walk 状语 through one of the markets of old delhi