诚服

诚服	chéng fú	to be completely convinced / to fully accept another person's views
诚	chéng	(bound form) sincere; authentic / (literary) really; truly
服	fú	clothes / dress / garment / to serve (in the military, a prison sentence etc) / to obey / to be convinced (by an argument) / to convince / to admire / to acclimatize / to take (medicine) / mourning clothes / to wear mourning clothes
服	fù	classifier for medicine: dose / Taiwan pr. [fu2]