水落歸槽

spilt water returns to the trough (idiom); fig. people remember where they belong

surname Shui

water / river / liquid / beverage / additional charges or income / (of clothes) classifier for number of washes

to leave out / to be missing / to leave behind or forget to bring / to lag or fall behind

colloquial reading for 落[luo4] in certain compounds

to fall or drop / (of the sun) to set / (of a tide) to go out / to lower / to decline or sink / to lag or fall behind / to fall onto / to rest with / to get or receive / to write down / whereabouts / settlement

trough / manger / groove / channel / (Tw) (computing) hard drive

surname Gui

to return / to go back to / to give back to / (of a responsibility) to be taken care of by / to belong to / to gather together / (used between two identical verbs) despite / to marry (of a woman) (old) / division on the abacus with a one-digit divisor