昼夜节律 Traditional 晝夜節律 zhòu yè jié lǜ 🔊 circadian rhythm + Keep this word Meanings zhòu yè jié lǜ 晝夜節律 circadian rhythm Its characters 昼zhòudaytime夜yènightHSK 4节jiéjoint; nodeHSK 3律lǜlaw