declare和announce都含“明确地声明或宣布的意思”。declare 经常用于正式场合,指“清楚, 有力地, 公开让人知道”, 如:He declared his intention to run for office.他宣布了自己参加竞选的想法。announce 指“把人们关心或感兴趣的事正式公布于众”, 如:announce a saleapprove为及物动词时 后直接接sth.;而为不及物动词时 后要加of才能接sth. 。这就是区别。approve vt.及物动词1. 赞成,同意;赞许[W]The professor does not approve the government's foreign policy.那位教授不赞成政府的外交政策。2. 批准;认可The city council has now approved the scheme for the erection of a new public library.市议会业已核准建造一座新的公共图书馆的计划。vi.不及物动词1. 赞成;赞许[W][(+of)]I'm afraid your parents won't approve of your going there.我担心你父母不会赞成你到那儿去。以下结果由译典通提供词典解释及物动词 vt. 1.以为;假定为;(想当然地)认为[+(that)][O2][O8][O9]I assumed that he had gone for a stroll. 我想他去散步了。 2.承担;就任;取得The prince assumed power when he was only fifteen. 王子在十五岁时就掌权了。 3.呈现;采取;采用His illness assumed a very grave character. 他的病显得非常的严重。 4.把...视为己有,僭取,夺取5.装出,假装He assumed a look of surprise. 他装出吃惊的神色。 不及物动词 vi. 1.装腔作势2.多管闲事以下结果来自互联网网络释义assume1.承担,担任;假装;假设assume v. 承担,担任;假装;假设2.假定,假装assume 假定,假装3.假定;承担;呈现assume vt.假定;承担;呈现