ADJ-GRADED
活泼欢快的;热情洋溢的；兴高采烈的
If you describe someone as effervescent, you mean that they are lively, entertaining, enthusiastic, and exciting.
例句
...an effervescent blonde actress...
热情活泼的金发女演员
America is the most intellectually, artistically and politically effervescent of nations.
美国是学术、艺术和政治氛围最活跃的国家。