mindmap root((复杂)) complex suggests the unavoidable result of bringing together various parts, notions, or details and does not imply a fault or failure: a ~ problem that calls for a ~ solution. complicated applies to what offers difficulty in understanding, solving, or dealing with: baffled by the ~ budgetary procedures. intricate suggests difficulty of understanding or appreciating quickly because of perplexing interweaving or interacting of parts: the ~ balance of power among nations. （perplex困惑adds to puzzle a suggestion of worry and uncertainly, especially about making a necessary decision，如an odd change of personality that perplexed her friends她奇怪的性格改变令朋友感到困惑） involved implies extreme complication and often disorder: an ~ explanation that clarifies nothing. knotty suggests complication and entanglement that make solution or understanding impossible: ~ questions concerning freedom of press and censorship.