形容词
中文翻译：复杂的
同义词：
['multifaceted', 'intricate', 'convoluted']
例句：
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1.The architecture of the city is complex and requires a deep understanding of its history.
这座城市的建筑复杂，需要深入了解其历史。
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2. The problem is so complex that it's difficult to solve.
这个问题太复杂了，难以解决。
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3.The complexity of the software makes it challenging for beginners to learn.
软件的复杂性使得初学者难以学习。