adv.不高兴地，冷淡地，漠不关心地

He sauntered into the room nonchalantly, as if he owned the place.
他漫不经心地走进房间，仿佛这里是他的领地。
She answered the phone nonchalantly, not realizing it was her boss.
她接电话时显得很随意，没意识到是老板打来的。
The detective took the evidence with a nonchalant shrug, but inside, he was worried.
侦探若无其事地接过证据，但内心其实非常担忧。
He entered the competition nonchalantly, yet managed to win first prize.
他看似不经意地参加了比赛，却意外夺得了冠军。
She wore her sunglasses nonchalantly, hiding her exhaustion from the world.
她漫不经心地戴着墨镜，掩饰了她的疲惫。
The athlete returned to the field with a nonchalant smile after a minor injury.
运动员在小伤后带着轻松的笑容回到了场地。
He listened to her complaint nonchalantly, clearly unimpressed.
他对她的抱怨反应淡然，显然并不在意。
The waiter served the customer's order nonchalantly, barely acknowledging their presence.
服务员对顾客的服务态度冷淡，几乎不看他们一眼。
She dismissed the news with a nonchalant wave, showing no concern for the matter.
她对这个消息满不在乎地挥挥手，似乎毫不关心。
He handled the crisis with a nonchalant air, giving the impression that nothing could rattle him.
面对危机，他表现得十分冷静，给人一种任何事情都难以动摇他的感觉。