announcement 
英 [əˈnaʊnsmənt]  美 [əˈnaʊnsmənt] 
n. 布告，通告；宣布；启事

例句：
There will be an announcement when more details are known. 

有更多消息后再行宣布。

No public announcement was made until last week. 

直到上周才发布公告。

There has been no official announcement by either government. 

双方政府都没有发布正式消息。

following the announcement of her resignation 

她辞职的消息发布之后

He made his announcement after talks with the President. 

他与总统会谈后发布了消息。