complicated

complex, complicated, sophisticated, intricate

这些形容词均含“复杂的”之意。
complex: 侧重内在关系的复杂，需通过仔细研究与了解才能掌握和运用。
complicated: 与complex的含义接近，但语气更强，着重极其复杂，很难分析、分辨或解释。
sophisticated: 侧重指事物发展到或达到高级的程度所体现出的复杂。
intricate: 着重指错综复杂，令人迷惑理解。

动词 complicate:

1. make more complicated
   同义词：complicate, perplex
2. make more complex, intricate, or richer
   同义词：complicate, refine, rarify, elaborate

形容词 complicated:

1. difficult to analyze or understand

1. Why does he have to wrap it all up in such complicated language?
   他为什麽非得用这麽艰深的语言说话呢?
2. The novel is too complicated for your age.
   这小说就你的年龄来说太复杂了。
3. The tax laws are so complicated that only an expert can provide enlightenment.
   税务法非常复杂，只有专家才能解释清楚。
4. The business is a large, complicated organism.
   该企业是一个大而复杂的组织。
5. Obtaining a refund from the company is a complicated procedure.
   向公司索取退款手续很复杂。
6. I don't understand the mathematics (eg the complicated calculations) here.
   我不明白这里复杂的数学运算。
7. They have straightened out a very complicated problem.
   他们已经把一个非常复杂的问题搞清楚了。
8. Chopin aroused very complicated emotions in her.
   肖邦的乐曲唤起了她极其复杂的感情。