蟠根错节

Explanation: Still made deep-rooted. Tree root ganglion coiled staggered. Metaphor troublesome complex. Qing xi "gift editing Bian Yu Wu Jun epitaph": "Chapters argues, however slight, has nothing to do light weight, almost as expensive scholars have relied on for the world will be when, Pan root wrong section, taking definite Eqing." See "deep-rooted . "