形容词
中文翻译：复杂的
同义词：
['complicated', 'intricate', 'multifaceted例句：1. The problem is complex and requires a thorough understanding of the underlying factors.（这个问题很复杂，需要对背后的因素有深入的理解。）2. The design of this product is complex and requires expertise in engineering.（该产品的设计复杂，需要工程专家的专长。）']
例句：
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1. The problem is complex and requires a thorough understanding of the underlying factors.
这个问题很复杂，需要对背后的因素有深入的理解。
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2. The design of this product is complex and requires expertise in engineering.
该产品的设计复杂，需要工程专家的专长。
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3.The company's decision to invest in new technology was a complex one, requiring careful consideration of various factors.
公司决定投资新技术是一个复杂的决策，需要仔细考虑各种因素。