sprightliness

1. This characteristic scent brings vivacity and sprightliness to some of the most remarkable coffees in the world.
   这种有特点的香味带给这世界上某些最不寻常的咖啡以活力和愉悦。
2. She endeavored to conceal a throbbing melancholy heart with the utmost sprightliness in her countenance.
   为了掩饰她那颗惆怅郁闷的心，她在神态间故意装作十分轻松活泼。

noun

1. animation and energy in action or expression
   1. it was a heavy play and the actors tried in vain to give life to it

   Synonym:    livelinesslifespirit