complex, complicated, sophisticated, intricate

名詞 complex:

1. a conceptual whole made up of complicated and related parts
   同義詞：composite
2. a compound described in terms of the central atom to which other atoms are bound or coordinated
   同義詞：coordination compound
3. (psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
4. a whole structure (as a building) made up of interconnected or related structures
   同義詞：building complex

形容詞 complex:

1. complicated in structure; consisting of interconnected parts

1. It's a complex question and her answer was too pat.
   那問題很復雜，但她的回答簡直是脫口而出。
2. The army is an extremely complex organism.
   軍隊是極其復雜的組織。
3. It's a complex question and your answer was too pat.
   這是一個復雜的問題，你的回答來得太快了。
4. My grandmother has a complex against foreigners.
   我奶奶對外國人抱有偏見。
5. He has a complex about his weight.
   他過分關(guān)心自己的體重。
6. Life is getting more complex and difficult.
   生活正在變得越來越復雜和艱難。

com.plex

adj.（形容詞）

Consisting of interconnected or interwoven parts; composite.
復合的：由互相關(guān)聯(lián)或交織的部分構(gòu)成的；復合的
Composed of two or more units:
合成的：由兩個或多個單元組成的：
例句：
a complex carbohydrate.
碳水化合物

Involved or intricate, as in structure; complicated.
復雜的：在結(jié)構(gòu)中牽扯較多的或錯綜復雜的；復雜的
Grammar
【語法】
Consisting of at least one bound form. Used of a word.
復合詞的：具有至少一種組合形式的。用于單詞
Consisting of an independent clause and at least one other independent or dependent clause. Used of a sentence.
復合句的：包含一個獨立主句和至少一個獨立或非獨立從句的。用于句子
n.（名詞）

A whole composed of interconnected or interwoven parts:
合成體：由相互關(guān)聯(lián)交織的部分組成的整體：
例句：
a complex of cities and suburbs; the military-industrial complex.
城郊結(jié)合體；軍事工業(yè)合成體

Psychiatry A group of related, often repressed ideas and impulses that compel characteristic or habitual patterns of thought, feelings, and behavior.
【精神病學】 情結(jié)：一組相關(guān)的控制和抑制思想、感覺和行為特征或習慣的觀念和沖動
An exaggerated or obsessive concern or fear.
夸大的或過激的擔心或恐懼
Medicine The combination of factors, symptoms, or signs of a disease or disorder that forms a syndrome.
【醫(yī)學】 綜合癥狀：形成綜合病癥的全部因素、病癥、或疾病或失調(diào)外在表象的綜合特征

來源：
Latin complexus [past participle of] complecto [to entwine] * see complect
拉丁語 complexus [] complecto的過去分詞 [使…纏繞] *參見 complect

【引伸】
complex.ly
adv.（副詞）
complex.ness
n.（名詞）
<參考詞匯><同義詞>complex,complicated,intricate,involved,tangled,knottyThese adjectives mean having parts so interconnected as to make the whole perplexing.
這些形容詞都指各部分間相互關(guān)聯(lián)從而使整體復雜難懂。
Complex implies a combination of many associated parts:
Complex 暗指許多關(guān)聯(lián)部分的組合：
例句：
The composer transformed a simple folk tune into a complex set of variations.
這位作曲家把一首簡單的民歌小調(diào)改編成一首復雜的變奏曲。

Complicated stresses elaborate relationship of parts:
Complicated 強調(diào)各部分之間的細微關(guān)系：
例句：
Middle Eastern politics is so complicated that even experts cannot agree on a cohesive policy.
中東政治如此復雜以致于甚至專家們也難以制定出統(tǒng)一的政策。

Intricate refers to a pattern of intertwining parts that is difficult to follow or analyze:
Intricate 著重于各部分交織在一起很難區(qū)分或分析：
例句：
.No one could soar into a more intricate labyrinth of refined phraseology. (Anthony Trollope).
.沒有人能夠攀進復雜的專業(yè)術(shù)語的優(yōu)雅迷宮. （安東尼·初蒲）。

Involved stresses confusion arising from the commingling of parts and the consequent difficulty of separating them:
Involved 強調(diào)若是把各部分混在一起將是難以區(qū)分的：
例句：
The plot of the play has been criticized as being too involved.
這個劇本的情節(jié)因過于混亂而遭到了批評。

Tangled strongly suggests the random twisting of many parts:
Tangled 強烈暗示許多部分無序地混在一起：
例句：
.Oh, what a tangled web we weave,/When first we practice to deceive!. (Sir Walter Scott).
.噢，我們陷入一團混亂，/當我們第一次試圖使詐時!. （沃特爾·斯圖爾特爵士）。

Knotty stresses intellectual complexity leading to difficulty of solution or comprehension:
Knotty 強調(diào)智力問題上的難于解決或理解：
例句：
Even the professor couldn`t clarify the knotty point.
甚至教授也無法解決這個棘手問題。