(dōu, ㄉㄡ) all; both (if two things are involved); entirely (due to) each; even; already [CE-DICT]
(dū, ㄉㄨ) capital city; metropolis; surname Du [CE-DICT]
挺
(ちょう) (ctr) counter for long and narrow things such as guns, scissors, spades, hoes, inksticks, palanquins, candles, jinrikishas, shamisen, oars, etc. [EDICT]
(tǐng, ㄊㄧㄥˇ) straight and stiff; rather (good); quite; very; classifier for guns or machinery [CE-DICT]