datum

n.数据，资料；论据

dash, dashboard, dashboard (also facia, fascia), dashing, dashingly, data, data bank, data capture, data-processing, databank, database, datable, date, date back to, date-line, date-stamp, dated, dateless, dating, dative, daub, dauber, daughter, daughter-in-law, daunt, daunting, dauntless, dauntlessly, dauphin, Dauphine Alps, davenport, davit, Davy Jones's locker, dawdle, dawdler, dawn, dawn chorus, dawn on sb., day, day after day,