federal case
noun
1- US Law a criminal case that falls under the jurisdiction of a federal court【美律】全国性大案（归联邦法院审理的刑事案件）。
1.1
- informal a matter of great concern〈非正式〉重大事件：
I'm not trying to make a federal case out of this, Christine, but you've got to do something.
克里斯廷, 我不想为此小题大做, 但是你也得采取点行动吧。