应手

to handle / convenient

hand / (formal) to hold / person engaged in certain types of work / person skilled in certain types of work / personal(ly) / convenient / classifier for skill / CL:雙|双[shuang1],隻|只[zhi1]

surname Ying / Taiwan pr. [Ying4]

to agree (to do sth) / should / ought to / must / (legal) shall

to answer / to respond / to comply with / to deal or cope with

lit. what the heart wishes, the hand accomplishes (idiom) skilled at the job / entirely in one's element / going smoothly and easily