complex

• 由许多相互关联的部分组成；不简单，不易理解。

Consisting of many interconnected parts; not simple or easy to understand.

1. Complicated or intricateB1formal

   Consisting of many connected parts; not easy to understand or analyze.

   复杂的

   • The math problem was too complex for the students.
   • She explained the complex structure of the organization.
   • This is a complex issue with no simple solution.

   同义词byzantinecomplicatedconvolutedelaborateintricateinvolvedknottylabyrinthinetangledtortuous

   反义词cleareasysimplestraightforwarduncomplicated

2. Consisting of multiple partsB2formal

   Made up of several parts or elements that are connected.

   复杂的

   • The complex machinery requires regular maintenance.
   • A complex molecule is formed by many atoms.
   • The building has a complex network of corridors.

   同义词compositecompoundconglomeratemanifoldmixedmultifaceted

   反义词basicelementalsimpleunitary

• 名词，指由多个建筑、设施或相互关联的部分组成的整体，也指与情感和观念相关的心理情结。

A noun referring to a group of buildings, facilities, or interconnected parts that form a whole, or a psychological concept involving related emotions and ideas.

1. B1formal

   A group of buildings or facilities that are related or serve a common purpose.

   综合体

   • The new apartment complex has a swimming pool.
   • They visited the industrial complex near the river.
   • The sports complex includes a gym and tennis courts.

   同义词campuscentercompounddevelopmentestatefacilityprecinct

2. Psychological issueB2formal

   A related group of repressed or emotionally significant ideas that cause abnormal behavior or attitudes.

   情结

   • He has an inferiority complex about his height.
   • Her guilt complex makes her apologize constantly.
   • The therapist helped him overcome his complex.

   同义词compulsionfixationneurosisobsessionphobiapreoccupation

3. Interconnected wholeB2formal

   A whole made up of complicated or interconnected parts.

   综合体

   • The economy is a complex of interrelated systems.
   • Language is a complex of rules and exceptions.
   • The ecosystem is a complex of living organisms.

   同义词aggregateassemblagecombinationcompositeconglomeratenetworknexusstructuresystemweb