As Wren's epitaph famously declares, the cathedral itself is his monument.是什么意思？

As Wren's epitaph famously declares, the cathedral itself is his monument.

众所周知，雷恩的墓志铭中写道，大教堂本身就是他的纪念碑。

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。

epitaph

n. 墓志铭，纪念死者的文字；

例句
As Wren's epitaph famously declares, the cathedral itself is his monument.
众所周知，雷恩的墓志铭中写道，大教堂本身就是他的纪念碑。

famously

adv. 著名地，出名地；

例句
Authors are famously ignorant about the realities of publishing...
作者们不了解出版界的实际情况，这是人所共知的。

declares

v. 宣布( declare的第三人称单数 )，断言，申报（收益），板球（在击球员还未全部出局时）宣布结束赛局；

例句
By wearing the ring on the third finger of the left hand, a married couple symbolically declares their eternal love for each other.
将婚戒戴在左手的第三只手指上, 意味着夫妻双方象征性地宣告他们的爱情天长地久,他们定能白头偕老.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

cathedral

n. 总教堂，大教堂；adj. 权威的，教堂的；

例句
...the Cathedral at the bottom of the street.
街道尽头的大教堂

itself

pron. (it的反身形式)，它自己，它本身，自身，本身；

例句
The team has accustomed itself to the pace of first division rugby...
球队适应了英式橄榄球甲级联赛的节奏。

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。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

monument

n. 纪念碑，遗迹，遗址，丰碑；

例句
The monument consists of a circle of gigantic stones...
纪念碑由一圈巨石组成。