地下水

groundwater

-ly / structural particle: used before a verb or adjective, linking it to preceding modifying adverbial adjunct

earth / ground / field / place / land / CL:片[pian4]

underground / subterranean / covert

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

downstream / to go into the water / to put into water / to launch (a ship) / fig. to fall into bad ways / to lead astray / to go to pot

offal / viscera / tripe

surname Shui

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