vt.

1. 宣布，发布[+that]
   They announced that she would give one extra song.

   他们宣布说她将再唱一首歌。

   The vote was completed. The chairman announced the result.

   投票完毕。主席宣布了结果。

2. 通报……的到达；通知……已准备好
   The servant announced Mr. and Mrs. Hunter.

   仆人通报亨特夫妇驾到。

3. 声称[+that]
4. 显示，预告[+that]
5. 播报

vi.

1. 当播音员，当报幕人
2. 【美】宣布参加竞选；宣布支持某人竞选[（+for）]
   The senator announced for the presidency.

   这位参议员宣布参加总统竞选。

v.