鐵打的衙門，流水的官

lit. the yamen is strong as iron, the officials flow like water (idiom) / fig. government officials come and go

surname Tie

iron (metal) / arms / weapons / hard / strong / violent / unshakeable / determined / close / tight (slang)

made of iron / strong as iron

dozen (loanword)

to beat / to strike / to hit / to break / to type / to mix up / to build / to fight / to fetch / to make / to tie up / to issue / to shoot / to calculate / to play (a game) / since / from

(coll.) to take a taxi / to go by taxi

see 的士[di1 shi4]

really and truly

of; ~'s (possessive particle) / (used after an attribute) / (used to form a nominal expression) / (used at the end of a declarative sentence for emphasis) / also pr. [di4] or [di5] in poetry and songs

(bound form) bull's-eye; target

surname Ya

office / yamen 衙門|衙门

government office in feudal China / yamen

gate / door / CL:扇[shan4] / gateway / doorway / CL:個|个[ge4] / opening / valve / switch / way to do something / knack / family / house / (religious) sect / school (of thought) / class / category / phylum or division (taxonomy) / classifier for large guns / classifier for lessons, subjects, branches of technology / (suffix) -gate (i.e. scandal; derived from Watergate)

to flow / to disseminate / to circulate or spread / to move or drift / to degenerate / to banish or send into exile / stream of water or sth resembling one / class, rate or grade

running water / (business) turnover

surname Shui

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

surname Guan

government official / governmental / official / public / organ of the body / CL:個|个[ge4]