ADJ-GRADED
活潑歡快的;熱情洋溢的；興高采烈的
If you describe someone as effervescent, you mean that they are lively, entertaining, enthusiastic, and exciting.
例句
...an effervescent blonde actress...
熱情活潑的金發女演員
America is the most intellectually, artistically and politically effervescent of nations.
美國是學術、藝術和政治氛圍最活躍的國家。