HSK 7-9
错综复杂
cuòzōng-fùzátangled and complicated (idiom)
事情关系错综复杂难以判断。
Shì qíng guān xì cuò zōng fù zá nán yǐ pàn duàn.
The relationships in this matter are too complex to judge easily.
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Appears across levels (7-9) in the HSK 3.0 word list.