1,keep doing sth 一直堅持做某事
例子；I keep doing homework ,. 我一直堅持做作業
2,keep sb doing sth 讓某人一直干某事
例子；His mother keeps him doing homework. 他媽媽讓他一直做作業
3.keep sb from doing sth 阻止某人干某事
例子；She keeps him from talking .她不讓他說話
希望得到采納
keep sb from doing sth
阻止某人做某事
keep sb from doing sth
阻止某人做某事; 阻止某人去做某事; 阻止某人干某事