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离:背离,不遵守。原指违反封建统治阶级所尊奉的经典和教条。现泛指背离占主导地位的理论或学说。
[depart from the classics and rebel against orthodoxy; be guilty of heterodoxy; be heretical and deviate from the true teachings] 背离正道;违反正统的经典道德规范 且本官志大言浮,离经叛道。——《元曲选外编·贬黄州》