the trait of remaining calm and seeming not to care; a casual lack of concern
Some journalists criticize her nonchalance and indifference. 一些记者批评她的冷淡与漠不关心。
One year later, I came back to Guangzhou, and the unusual nonchalance between us was sensed by our sensitive friends, who set a trap for us.We met again at a karaoke hall. 一年后我回到广州，我们之间的异常冷淡让敏感的朋友察觉，他们精心设下了布局。
She..re-set her face into gum-chewing nonchalance.