一潭死水

a pool of stagnant water / stagnant or listless condition

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

surname Tan

deep pool / pond / pit (dialect) / depression

to die / impassable / uncrossable / inflexible / rigid / extremely / damned

stagnant water / backwater

surname Shui

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