形容词
中文翻译：复杂的
同义词：
['complicated', 'intricate', 'multifaceted']
例句：
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1. The problemis so complex that it's hardto solve.
这个问题太复杂了，很难解决。
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2. The architecture of the building is complexand requires careful planning.
这座建筑的结构复杂，需要仔细规划。
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3. The complexity of thesoftware makes it difficult for beginners tounderstand.
软件的复杂性使得初学者难以理解。