形容词
中文翻译：复杂的
同义词：
['complicated', 'intricate', 'multifaceted']
例句：
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1. The problem iscomplex and requires a detailed analysis.
这个问题很复杂，需要详细分析。
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2. The design of the building is complex and requires careful consideration.
建筑的设计很复杂，需要仔细考虑。
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3.The solution to this problem is complex and requires expertise in the field.
解决这个问题需要专业知识。