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knotty

adjective

🔊/ˈnɒti/

🔊/ˈnɑːti/

(comparative knottier, superlative knottiest)

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complicated and difficult to solve复杂的；难以解决的；棘手的 synonym thorny
- a knotty problem棘手的问题
having parts that are hard and twisted together有节的；缠绕在一起的
- the knotty roots of the old oak tree盘根错节的老橡树根