indifference造句

"Giles phoned this morning," Mirella said with feigned indifference.
“贾尔斯今早来电话了,”米雷拉装作若无其事地说。

He displayed a sublime indifference to the distinction between right and wrong.
他对是非之间的差别根本就无动于衷。

He laughed it off with aristocratic indifference.
他带着贵族式的漠然对其一笑置之。