dog

n.狗，雄兽 vt.尾随，跟踪

doctorate, doctrinaire, doctrinal, doctrine, document, documentary, documentation, dodder, dodderer, doddering, doddle, dodge, dodgems, dodger, dodgy, dodo, doe, doer, does, doff, dog days, dog-biscuit, dog-collar, dog-eared, dog-leg, dog-like, dog-paddle (also doggie-paddle), dog-tired, dog-tooth, dog-trot, dog-watch, dogcart, doge, dogfight, dogfish, dogged, doggedly, doggedness, doggerel, doggie (also doggy),