clearance

n.清理；清除

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, clear...of, clearheadedly, clearing, clearing bank, clearing-house, clearly, clearness, clearway, cleat, cleavage, cleave, cleaver, clectrician, clef, cleft, cleft palate, clematis, clemency, clement, clementine, clench,