to issue an ultimatum是什么意思？

to issue an ultimatum

发出最后通牒

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

issue

n. 问题，议题，（报刊的）期，号，发

例句
The Queen remains above criticism, apart from the issue of her tax liability...
抛开她的纳税义务不谈，女王一直无可指摘。

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

例句
He started eating an apple...
他开始吃苹果。

ultimatum

n. 最后通牒，最后条件，最后结论，基本意义（原理）；

例句
They issued an ultimatum to the police to rid an area of racist attackers, or they will take the law into their own hands.
他们向警方发出了最后通牒，要求肃清整个地区的种族主义暴徒，否则他们将自行采取行动。