sprightliness

The professor convinced me through the sprightliness of her conversation .

教授通过她轻快的谈话说服了我

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。

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。