低首下心

to be fawningly submissive (idiom)

low / beneath / to lower (one's head) / to let droop / to hang down / to incline

head / chief / first (occasion, thing etc) / classifier for poems, songs etc

down / downwards / below / lower / later / next (week etc) / second (of two parts) / to decline / to go down / to arrive at (a decision, conclusion etc) / measure word to show the frequency of an action

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]