他那种把东西扔在地板上的粗心大意让我很恼火。

It's the ___carelessness with which he just throws stuff on the floor that annoys me.

请原谅我的粗心大意。

Please forgive my ___carelessness.

他的粗心大意导致工作中犯了一个大错误。

His ___carelessness resulted in a major mistake at work.