I was at a loss for words when I heard the news.(我聽到這則消息時，不知道該說些什么好。)

The boy was at a loss when he could not find his mother.(當這個孩子找不到媽媽時，茫然不知所措。)

We are now operating at a loss.(我們現在是虧本經營。)

I was at a loss for what to do next.(我不知道下一步該怎么辦。)

Happy beginning than the end. Your love gives me the at a loss.(開始比結束快樂。你的愛讓我不知所措。)

It's true, I am at a loss.(我失去方向那時個事實。)

He feels he cannot stop and is at a loss for solutions.(他覺得他停不下來，而且無法解決。)

The police were at a loss to explain the affair?(警察們不知該如何解釋這一事情。)

His comments left me at a loss for words.(他的評論讓我不知說什么才好。)

Detectives are so far at a loss to explain the reason for his death.(至今偵探仍茫然無法解釋他的死因。)