keep + adj.保持..（某种状态）.
keep doing sth.保持...(某种状态）
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
加油 加油