下手

to start / to put one's hand to / to set about / the seat to the right of the main guest

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

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]

strike first and gain the upper hand (idiom, martial arts term); Making the first move is an advantage.

to act in a supporting role / fig. to play second fiddle

not know where to start

like mice trying to pull a turtle, nowhere to get a hand grip (idiom) / no clue where to start