clean up

打扫干净

classless, classmate, classroom, classy, clatter, Claudius Ptolemaeus, clause, claustrophobia, claustrophobic, clavichord, clavicle, claw, claw-back, claw-hammer, clay, clay pigeon, clay pipe, clayey, claymore, clean, clean-cut, clean-limbed, clean-shaven, clean-up, cleaner, cleaning woman, cleanliness, cleanly, cleanse, cleanser, clear, clear away, clear off, clear one's throat, clear out, clear up, clear-cut, clear-headed, clear-headedness, clear-sighted,