qīng / jié / gōng / huā / le / hěn / cháng / shí / jiān / cái / bǎ / dì / bǎn / shàng / de / xuè / wū / cā / gān / jìng

清洁工花了很长时间才把地板上的血污擦干净。

It took the cleaner a long time to remove the blood smears from the floor.