john，was dismissed last week beacause of his__attitude towards his job.

【专家解说】：b漫不经心的 ----------------------------------------- Casual adj. 非正式的 He was wearing casual clothes. 他穿着便服。 The plan grew out of a casual conversation. 这个计划出自于一次非正式的谈话。 漫不经心的 He sidled past, trying to seem casual. 他悄悄地溜了过去,竭力装作漫不经心的样子。 She is casual about winning the prize. 她对获奖漫不经心。 偶然的 A casual newspaper reader wouldn't like articles on politics everyday. 不经心的报纸读者不会喜欢每天都有政论文章。 He described himself as a casual acquaintance of the Kennedys'. 他称自己是肯尼迪夫妇的泛泛之交。 临时的 He took casual job to support the family. 他做些临时性的工作来养家。 They earn their livings by casual labour. 他们靠做短工为生。