the quality of being full of life and energy; the quality of being active and enthusiastic 活泼: 充满活力和活力的品质;积极热情的素质Her liveliness and wit impressed him. 她的活力与才思给他留下了深刻印象。
the fact of being full of interest or excitement 充满趣味的;令人兴奋的 the liveliness of a big city 大城市的活力