倒苦水

to pour out one's grievances

to fall; to collapse; to lie horizontally / to fail; to go bankrupt / to overthrow / to change (trains or buses) / to move around / to resell at a profit

to invert; to place upside down or frontside back / to pour out / to tip out; to dump / inverted; upside down; reversed / to go backward / contrary to what one might expect; but; yet

bitter / hardship / pain / to suffer / to bring suffering to / painstakingly

bitter water (e.g. mineral water containing sulfates) / suffering / digestive fluids rising from stomach to the mouth / fig. bitter complaint

surname Shui

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