vi·vac·i·ty /-ˈvæsəti/
快活,活潑,精神充沛
Vi·vac·i·ty n. The quality or state of being vivacious. Specifically: --
(a) Tenacity of life; vital force; natural vigor. [Obs.]
The vivacity of some of these pensioners is little less than a miracle, they lived so long. --Fuller.
(b) Life; animation; spiritedness; liveliness; sprightliness; as, the vivacity of a discourse; a lady of great vivacity; vivacity of countenance.
Syn: -- Liveliness; gayety. See Liveliness.
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vivacity
n : characterized by high spirits and animation