declare: implies explicitness and usually formality in making known: the referee ~ the contest a draw.    


announce: implies a declaration, especially for the first time, of something that is of interest or is intended to satisfy curiosity: ~ their engagement at a party.  


publish: implies the making public, especially through print: ~ed the list of winners.


proclaim: implies a clear, forceful, authoritative oral declaring: the president ~ a national day of mourning.    emancipation proclamation: 解放黑人奴隶宣言


promulgate: implies the proclaiming of a dogma, doctrine, or law: ~d an edict of religious tolerance. (doctrine和dogma都表示教条，后者表示僵化教条the dogma that the king can do no wrong认为国王永远正确的教条) (edict: 法令In 1741 Catherine the Great issued an edict of toleration for Buddhism1741年叶卡捷琳娜大帝颁布法令允许佛教存在)


advertise: applies to calling public attention to something by widely circulated statements, often marked by extravagance or a lack of restraint: ~ a new model of vacuum cleaner.      (ad常缩写成advertisement)


declare宣布: 明确正式的告知(an explicit,formal making known)，announce也是宣布:  常表首次，满足兴趣好奇，publish出版:  表示通过印刷公开，proclaim宣言:  指有力权威清晰的口头宣布(clear, forceful, authoritative, oral)，promulgate发布:  指宣布教导教条法律，advertise广告: 广泛发布声明吸引公众注意某物(statement正式声明)，常带夸张(extravagance,lack of restraint夸张缺乏克制)


记忆方法: 1）首字母想成3P A AD: 三人发广告<==宣布宣传


         2）宣布的意思是公开告知mean to make known publicly.