insouciance [ɪnˈsusiəns, ˌæŋsuˈsjɑŋs]

例句:

• He replied with characteristic insouciance: "So what?"
  他以一贯的漫不经心回答道：“那又怎样？”
  
• She hid her worries behind an air of insouciance.
  她掩饰着自己的烦恼，表现得无忧无虑。
  
• He replied with characteristic insouciance: 'So what?'
  他以一贯的漫不经心回答道：“那又怎样？”
  
• His landscapes have...the happiest insouciance of handling.
  来自N. Pevsner
• Despite the air of insouciance, Ellington took his composing seriously.
  来自NEWYORKER
• Spiderweb mesh stockings can offer a black skirt a touch of Mudd Club insouciance.
  来自WSJ