有以下几个词可以选择:a theme; a subject; a motif; the burden; the subject matter; the key subject; a topical subject楼主是关于教育的,所以我认为应该用the burden或者是theme,the burden意思如下:(the burden)the main theme or gist of a speech, book, or argument (演讲、书或辩论的)主题,主旨 the burden of his 他所提意见的主旨。 theme意思如下:the subject of a talk, a piece of writing, a person's thoughts, or an exhibition; a topic 题目,主题 the theme of the sermon was 这次布道的主题是敬爱。 但是the burden不太常用,估计比较正式,希望楼主在the burden 和theme之间权衡一下。