多么美丽的一天啊，大家好，欢迎回来，收听并学习《Faith口语课堂-天天学》，我是Faith老师。在这个网上英语口语课堂里，每天教大家一点口语用法，日积月累，你的口语进步可真的会很大哦！ 
首先来认识一下这个词：stumble, vi.绊脚，跌跌撞撞地走，(说话、演奏等)出错

She stumbled on a stone. 她被一块石头绊了一脚。

He chugged the rest of his beer and stumbled over to the two girls. 他把杯中的啤酒一饮而尽，然后跌跌撞撞地向那两个女孩走去。

He stumbled over every sentence. 他讲每句话都结结巴巴。

I'm stumbling at this step and can't make a move. 我对这一步骤踌躇不决，没能往前迈。 

Have/has absolutely no idea…完全没概念，完全没头续，后面接一个句子（可以以特殊疑问词引导：how, what, when, why, where, who, how much, how many…，也可以以that引导，等等）

I had absolutely no idea what to do so I just replied in English, "hey, your Japanese is pretty good". 我完全傻了眼，所以，只好用英语回答说：嗨，你日语讲得真好。

I have absolutely no idea where I’ve met him. 我完全傻了眼，不记得在哪儿见过他。

I just think you should be on your guard. You have absolutely no idea who this Jed guy is. 我只是觉得你最好提高警觉。毕竟你完全不知道这个叫杰德的家伙究竟是个什么样的人。

I was embarrassed, because I had absolutely no idea. 我因为没有主意而不知如何是好。

I had absolutely no idea what she referred to. 我根本不知道她指的是什么。

同时，Have/has absolutely no idea…后面还可以接一个由of引导的短语： I had absolutely no idea of his age. 我完全不知道他多大岁数了。 I have absolutely no idea how you like my class, will you tell me?