Gǔdài / guānyuán / bìxū / yījù / fǎlǜ / duàn / yù， / bùnéng / zhǐ / píng / gèrén / xǐhào。

古代官员必须依据法律断狱，不能只凭个人喜好。

Officials in ancient times had to judge legal cases according to the law rather than personal preference.