The employment department has undergone several metamor-phoses.是什么意思？

The employment department has undergone several metamor-phoses.

就业部已经经历了数次改革。

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。

employment

n. 雇用，使用，职业，有益的活动；

例句
Senate employees could take their employment grievances to another branch of government...
参议院的雇员可以向别的政府部门申诉工作问题。

department

n. 部门，部，系，学部，知识范围，车间；

例句
They move freely from one department to another as they ascend the civil service ladder.
随着仕途晋升，他们可以在部门间随意调动。

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

例句
...the operation a patient has had.
病人做过的手术

undergone

v. 经历，承受( undergo的过去分词 )；

例句
Can you possibly imagine all the horrors we have undergone since I last wrote you?
你能想象得出自从我上次给你写信以来我们所经历的所有可怕事情吗？

several

adj. 几个的，专有的，各自的，分别的；pron. 几个，数个，一些；

例句
He's already altered several of the proposals in his economic plan to accommodate demands of special interests.
他已经改动了经济计划中的几项提议以迁就特殊利益集团的要求。