dynamism

n [U] 1 (in a person) quality of being dynamic （人的）精力, 活力, 干劲. 2 (philosophy 哲) theory that phenomena are the result of natural forces acting on each other 物力论（认为一切现象都是自然力相互作用的结果之理论）.

duty, duty-bound, duty-free, duvet, DV, dwarf, dwell, dwell on, dweller, dwelling, dwindle, dye, dyed-in-the-wool, dyeing, dyer, dying, dyke, dynamic, dynamically, dynamics, dynamite, dynamo, dynastic, dynasty, dysentery, dyslexia, dyslexic, dyspepsia, dyspeptic, E, E number, E, e, E-mail, e. g., e.g., ea, each, each other, eager, eagerly,