1
it is complicated to do sth
常用句型，表示做某事复杂。
It is complicated to apply for a visa.
申请签证很复杂。
复杂的；难懂的；棘手的
先理解核心含义，再看它在真实句子里的用法。
复杂的；难懂的；棘手的
Difficult to understand, analyze, or deal with.
It is complicated to apply for a visa.
申请签证很复杂。
困难或复杂的
Difficult or convoluted.
纵向折叠的(如某些昆虫的翅膀)
Folded longitudinally (as in the wings of certain insects).
难以分析或理解
difficult to analyze or understand
The instructions were so complicated that I had to read them several times.
这些说明太复杂了，我不得不读了好几遍。
AI contextual example
She found the legal documents complicated and asked a lawyer for help.
她觉得法律文件很复杂，于是请了律师帮忙。
AI contextual example
This complicated relationship between the two countries has lasted for decades.
两国之间这种复杂的关系已经持续了几十年。
AI contextual example
a complicated problem
一个复杂的问题
WordNet
常用句型，表示做某事复杂。
It is complicated to apply for a visa.
申请签证很复杂。
被动结构，表示被某事物复杂化。
The problem was complicated by lack of funds.
由于缺乏资金，问题变得更加复杂。
作定语修饰名词，表示复杂的。
This is a complicated issue.
这是一个复杂的问题。
Not this
The situation complicated me.
Use this
The situation complicated things for me.
错误地将形容词“complicated”用作及物动词。正确用法是作为动词时需带宾语，或使用形容词搭配“be complicated”或“make things complicated”。
Not this
It is complicated of understanding.
Use this
It is complicated to understand.
形容词“complicated”后应接不定式“to do”，而不是“of doing”。该错误源于中文“复杂的理解”的直译。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
非常复杂
The instructions are highly complicated.
这些说明非常复杂。
极其复杂
The problem is extremely complicated.
这个问题极其复杂。
复杂的过程
Applying for a visa is a complicated process.
申请签证是一个复杂的过程。
复杂的关系
They have a complicated relationship.
他们之间的关系很复杂。
复杂的情况
We are dealing with a complicated situation.
我们正在处理一个复杂的情况。
复杂的系统
The complicated system requires careful study.
这个复杂的系统需要仔细研究。
情况复杂；说来话长
When asked about their relationship, she just said, 'It's complicated.'
当被问及他们的关系时，她只是说：“情况很复杂。”
把事情复杂化
Why do you always have to make things complicated?
你为什么总是要把事情复杂化？
你为什么非得把事情搞得这么复杂？
The song 'Complicated' by Avril Lavigne is about a frustrating relationship.
艾薇儿的歌曲《复杂》是关于一段令人沮丧的感情的。
关系复杂
Many people use 'It's complicated' as their relationship status on social media.
很多人在社交媒体上将关系状态设为“关系复杂”。
Use complicated naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象很多层纸折叠（plicate）在一起（com），自然复杂。
中性偏正式，通常用于日常生活、学术讨论、技术文档等多种场景，表示事物复杂难以理解或分析。
These words share the same ending /keɪtɪd/ with secondary stress on the '-ca-' syllable, rhyming with 'complicated'. All end in the spelling chunk '-cated'.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.