nonchalance

His eyes, blue as the summer sky, gave away his fierce devotion to his friends, even when he tried to feign nonchalance.

他的眼眸蓝如夏日晴空，泄露了他对朋友们的深情厚意，尽管有时他试图装出一副冷淡的样子。

Your irresolute attitude, coupled with your irrepressible sense of nonchalance simply is inappropriate to the seriousness of the situation.

你犹豫不决的态度以及抑制不住的冷淡与事态的严重性完全不相称。

Scarlett turned away from Mammy with studied nonchalance , thankful that her face had been unnoticed in Mammy’s preoccupation with the matter of the shawl .

思嘉故意装出一副冷淡的样子掉过头去，幸喜嬷嬷正一个劲儿唠叨披肩的事，不曾看见她的脸。