dynamic /daiˈnæmik/ adj. 动力的，动力学的，动态的：dynamic economics 动态经济学； dynamic engineering 机械学［考句］ He was such a dynamic speaker that he held our attention every minute of the three-hour lecture. 他的演讲充满活力，整整三个小时我们全神贯注没有分心一分钟。