from /frɔm, frəm/ prep. 1. 从；从…起(可表示地点和时间)：The thief jumped from the window.窃贼从窗口跳下。She has been living with her grandmother from childhood. 从幼年时代起她就一直和祖母生活在一起。 2.去除，免除，防止：be released from prison 从监狱中释放; prevent a person from doing sth.阻止某人做某事 3.(表示原因，动机)因为，由于：suffer from influenza 患流行性感冒；act from a sense of duty 行动出于责任感 4.(表示原料)由：make wine from grapes 用葡萄酿酒 5.从，据：judge from a person’s conduct 根据某人的行为来判断 6.用于短语 from now (then) on从现在(那时)起：We’ll keep in touch forever from now on. 从今后我们将永远保持联系。Mr.Wang graduated from Beijing Teachers’ University in 1990 and from then on he has been teaching at this school. 王先生1990年从北师大毕业，从那时起他一直在这所学校教书。 from… to… 从…到…：from countryside to city从农村到城市；from morning to (till) night从早到晚; from door to door挨门挨户；count from one to ten从一数到十