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奸:坏事;科:法律条文。为非作歹,触犯法令。
[violate the law and commit crimes;commit offences against law and discipline] 奸诈狡猾而违犯国法 若有作奸犯科,及为忠善者,宜付有司,论其刑赏。——诸葛亮《出师表》