gleeful       
adjective uk/ˈɡliː.fəl/ us/ˈɡliː.fəl/
 高兴的,兴奋的,欣喜的
happy, excited, or pleased
  a gleeful smile/shout 欢快的笑容/喊叫 
 I rubbed my hands in gleeful anticipation before settling down to sleep. 我兴高采烈地搓了搓手,然后安然入睡。 
 See: glee
 - More examples
 - The manager had a gleeful smile on his face.
 - He seemed almost gleeful that his party had lost their majority.
 - The king's response was almost gleeful.