这里注意区分两个词组:remember doing sth 记得做过某件事/ remember to do sth 记住去做某件事(暗示还没做)。给你举个例子: i remember meeting him once at a party . 我记得某次聚会见过他。 Remember to meet him, Mary. 玛丽,记得去见他啊!至于第二个问题,同样可以用这个句型 i remember having locked the door 就可以啦。