dynamic
/daɪˈnæmɪk; daɪ`næmɪk/ adj
1 of power or forces that produce movement 动力的. Cf 参看 static 2.
2 (of a person) energetic and forceful （指人）精力充沛的, 有力的
a dynamic personality 精力充沛的人. dynamic, n [sing]
force that produces change, action, or effects 产生变化、 行动或影响的力量
the inner dynamic of a historical period, social movement, work of art 某一历史时期的、 社会运动的、 艺术品的内在力量.