keep (sb.) away (from sth.)（使）某人离开（某物）
keep sb. from doing sth. 阻止某人做某事
keep sth. in mind 记住（某事物）
keep sb./ sth. out (of sth.) 不让……入内
keep back 忍住（眼泪）,扣下,隐瞒
keep in touch with 与……保持联系
keep (on) doing sth. 继续做某事
keep off 远离,避开,让开
keep up 保持（不低落）,继续
keep up with 跟上,不落在后面