一、announce 是指首次公開或正式宣布人們所關心的某件事，含有預告的意思，有「鄭重其事」之意；
英文解釋：
1.to officially tell people about something, especially about a plan or a decision宣布，宣告，公布
例句：At the end of their meeting, it was announced that an agreement had been reached. 會議最後宣布已達成一項協議。
2.to say something, especially something that other people will not like, in a loud and confident way 鄭重地說，大聲而肯定地說〔尤指別人不喜歡的事〕
例句：『I』m not going to their party,』 Maggie announced. 「我不會去參加他們的聚會。」瑪吉鄭重地說。
3.to give information to people using a loudspeaker or microphone , especially at an airport or railway station 廣播通知〔尤指在機場或火車站〕
例句：We arrived just as they were announcing the arrival of Flight 207 from Minneapolis. 我們到的時候正在廣播來自明尼阿波利斯的207次航班已經到達的消息。
二、declare 強調「明確地，公開地」宣告某事，如戰爭、和平或意見等，有「斷言、聲稱」之意。
英文解釋：
1.to state officially and publicly that a particular situation exists or that something is true 宣布，聲明
例句：A state of emergency has been declared. 已宣布進入緊急狀態。
2.to say publicly what you think or feel 聲稱，宣稱
例句：『It’s not fair,』 Jane declared. 「這不公平。」 簡宣稱道。
三、常用短語
四、練習：用announce 或declare的正確形式填空。（評論回復答案）
"The result will be ( ) in a few days," she ( ).