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 on 穿戴着.；使（灯等）一直开的.
keep out 使留在外面
keep up 保持（不低落）,继续
keep up with 跟上,不落在后面