盤根錯節 [ㄆㄢˊ ㄍㄣ ㄘㄨㄛˋ ㄐㄧㄝˊ; pan2 gen1 cuo4 jie2]
twisted roots and intertwined joints (idiom); complicated and very tricky
knotty and deeply-rooted difficulties
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盤根錯節
ばんこんさくせつ
noun (common) (futsuumeishi)
hard to penetrate event or situation
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