叮嘱
dīng zhǔ · HSK 7
to exhort again and again
🔔☝️ 叮 = ding (bell sound) + 嘱 = entrust; a bell dinging reminders at you
叮 imitates a bell's ding — that persistent ringing. 嘱 means to entrust or instruct. Together: someone dings instructions at you over and over, like a bell that won't stop until you get the message.