keep...（sth.） to...(sb.) 应该怎么理解?

keep...（sth.） to...(sb.) 应该怎么理解? keep sb （）sth keep sb to do sth 英语翻译我知道有 keep sb doing sth .1 应该没有 keep sb to do sth / 或是 Ke keep词组有keep sb doing sth或keep sb to do sth吗 keep sb do sth 与keep sb to do sth的区别是什么 keep sb doing sth 和keep sb to do sth 有什么区别啊 keep sb.up to date on sth 语法 问下 keep sth to还是for sb? 怎么变单三的句子?、tell sb sth、 tell sb about sth、 tell sb to do sth、 keep sb do sth 还是keep sb doing sth? 有没有suggest sb to do sth的结构?没有的话.应该怎么搭配?