announce 
英 [əˈnaʊns]  美 [əˈnaʊns] 
vt. 宣布；声称；（广播）通知；通报...的到来

例句：
He is expected to announce his retirement later today. 

预计他会在今天晚些时候宣布退休。

Last week she announced her intention not to serve a second term. 

她上周宣布无意连任。

The couple have announced the birth of a son. 

这对夫妇宣布生了一个儿子。

He will announce tonight that he is resigning. 

他将在今晚宣布辞职。

It was announced that they have agreed to a ceasefire. 

据宣布，他们已经同意停火。

The Senator is expected to announce next week. 

参议员预计会在下周宣布参加竞选。