Nantoka/清淤qīng yū清淤 (qīng yū) is a Chinese word meaning “to dredge; to remove sludge”.Meanings1to dredge; to remove sludgeCharacters in 清淤清qīng · (of water etc) clear; clean淤yū · siltRelated words清楚clear清(of water etc) clear; clean清Qing (Wade-Giles: Ch'ing) dynasty of China (1644–1911)清醒clear-headed清理to clear up清白pure清单list of items清除to clear away清洁clean清晰clear; distinct清洗to wash; to rinse; to clean澄清clear (of liquid)Study Chinese with flashcards →