He is, as it were , a walking dictionary.是什么意思？

He is, as it were , a walking dictionary.

他可以说是一部活字典.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

it

pron. 它，他，正好是所需的，事实[情况]；n. <美俚>傻瓜，笨蛋，<俚>绝妙的人，理想的东西，登峰造极；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

walking

n. 步行，散步，步法，步态，道路状态；adj. 步行（用）的，（能）行走的，解雇的，被免职的；v. 走，步行( walk的现在分词)；

例句
A newly-married couple, he thought, on account of their walking so close together.
看俩人走路时挨得这么近，他觉得他们是新婚夫妇。

dictionary

n. 词典，字典，[自]代码字典；

例句
In The Dictionary of Quotations, there are no fewer than one and a half columns devoted to 'kiss'.
在《引语词典》中，“亲吻”这一条目不下一栏半。