celerity

n [U] (arch 古) quickness 敏捷; 迅速.

CD, CD-ROM, Cdr (also Cmdr), Cdre (also Cmdre), CDT, CE, cease, cease-fire, ceaseless, ceaselessly, cedar, cede, cedilla, ceiling, celandine, celebrant, celebrate, celebrated, celebration, celebrity, celery, celestial, celibacy, celibate, cell, cellar, cellist, cello, Cellophane, cellular, cellular-phone, celluloid, cellulose, Celsius, Celt, Celtic, cement, cemetery, cenotaph, censer,