Law An action or a cause that falls under the jurisdiction of a federal court.【法律】 全国性案件：受到美国联邦法院审判的行为或案件
Informal A major issue that has evolved from a minor problem or complaint:【非正式用语】 夸大的小事：由小问题或抱怨发展而来的大问题：made a federal case out of our tardiness.因拖延而把事情弄大