/ə'naʊns; ə`nauns/
v
1 [Tn, Tf, Tw, Dn.pr, Dpr.f, Dpr.w] make (sth) known publicly 宣布; 宣告; 发表
*They announced their engagement to the family. 他们向家 宣布他们已经订婚了.
* The Prime Minister announced that she would resign. 首相宣布她将辞职.
* Have they announced when the race will begin? 宣布比赛什么时候开始了吗?
2 [Tn] make known the presence or arrival of (sb/sth) 通报（某人[某事物]）的出席或到来
*Would you announce the guests as they come in? 客人来时你通报一声好吗?
3 [Tn] introduce (a speaker, singer, etc) on radio, TV, etc （在无线电, 电视等上）主持介绍（演讲者, 演唱者等）.

v [T]
[Date: 1400-1500; Language: French;Origin: annoncer, from Latin annuntiare, from ad- 'to' + nuntiare 'to report']
to officially tell people about something, especially about a plan or a decision
　They announced their engagement in 'The Times'.
announce a decision/intention/plan
　The government has announced plans to create 10,000 new jobs.
announce that
　A government spokesman announced that the hostages had been released.
　At the end of their meeting, it was announced that an agreement had been reached.
announce sth to sb
　Cordon announced his resignation to staff members on Wednesday.
to say something, especially something that other people will not like, in a loud and confident way
= state
　'I'm not going to their party,' Maggie announced.
announce (that)
　He stood up and announced that he was ready to go.
to give information to people using a loudspeaker or microphone, especially at an airport or railway station
　We arrived just as they were announcing the arrival of Flight 207 from Minneapolis.
announce sb/yourself
to officially tell people that someone has arrived at a particular place
　All visitors to the apartment building must be announced.
　After announcing himself at the reception desk, James was led upstairs.
to introduce a programme on television or radio