lighthearted ['laɪt'hɑ:tɪd]

例句:

• The children looked lighthearted now that the final exam was over.
  期终考试结束了,孩子们看上去都很轻松愉快.
  
• By merely letting drop one lighthearted remark, Miss Pao had Fang hooked.
  鲍小姐只轻松一句话就把方鸿渐钩住了.
  
• He had a lighthearted disposition and a soul filled with optimism.
  他生性快活,心中无限乐观.
  
• "Inherent Vice" is a generally lighthearted affair.
  来自NEWYORKER
• Even in lighthearted matters, Sotomayor can be a grind.
  来自NEWYORKER
• While the students are sometimes lighthearted, they take the class seriously.
  来自VOA