identical

alike, like, similar, comparable, parallel, uniform, identical

same, identical, very, equal, equivalent

形容词 identical:

1. exactly alike; incapable of being perceived as different
   同义词：indistinguishable
2. being the exact same one; not any other:
   同义词：selfsame, very
3. (of twins) derived from a single egg or ovum
   同义词：monovular
4. having properties with uniform values along all axes
5. coinciding exactly when superimposed
   同义词：superposable

1. The two systems are, in effect, identical.
   这两种制度实际上一模一样。
2. This is the identical hotel we stayed at last year.
   这就是我们去年住过的旅馆。
3. Your appearance is identical to hers.
   你的相貌和她的一模一样。

i.den.ti.cal

adj.（形容词）
Being the same:
同一的：
例句：
another orator who used the senator`s identical words.See Synonyms at same
另一个发言者使用了与这个参议员完全相同的措词参见 same

Exactly equal and alike.
完全相等的或相似的
Having such a close similarity or resemblance as to be essentially equal or interchangeable.
可互换的：十分类似或相象以至于本质上相等的或能互换的
Biology Of or relating to a twin or twins developed from the same fertilized ovum and having the same genetic makeup and closely similar appearance; monozygotic.
【生物学】 同卵双生的：从同一受精卵中产生的，具有相同基因结构和相似外貌的孪生子的；单卵的

来源：
From Medieval Latin identicus
源自 中世纪拉丁语 identicus
from Late Latin identit3s [identity] * see identity
源自 后期拉丁语 identit3s [同一性] *参见 identity

【引伸】
iden.tically
adv.（副词）
iden.ticalness
n.（名词）
Some authorities on usage specifywith as the preferred preposition after identical. But eitherwith or to is now acceptable.
一些词语用法上的权威观点认为只有with 才能在 identical 一词后作为介词使用， 但现在with 和 to 均可使用