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knotty
02
复杂的
making great mental demands; hard to comprehend or solve or believe
03
结节状的
used of old persons or old trees; covered with knobs or knots
04
打结的
tangled in knots or snarls
例子
The negotiations between the two countries were knotty, with conflicting interests and historical tensions.
The legal case became increasingly knotty as new evidence and conflicting testimonies emerged.
The scientist encountered a knotty problem in the research, requiring innovative approaches to overcome.
Solving the complex mathematical problem proved to be a knotty challenge for even the most skilled mathematicians.
The author skillfully navigated through the knotty plot of the mystery novel, keeping readers engaged until the end.
