keep

词源词根法

来自古英语cepan，抓住，握住，保持，观察，再来自Proto-Germanic*kopijan，看，注视，来自PIE*gab，照看，看管。比较hold,behold.来源于古英语cepan。

常用短语

keep in 隐瞒，隐藏；抑制；继续燃烧

keep on 继续；穿着…不脱

keep up 保持；继续；不低落；不落后

keep up with 赶得上；和…保持联系

词组比较

1.keep doing sth与keep on doing sth若表示反复发生的动作(即动作间有间隔)，可互换；若表示持续的状态或连续不断的动作(动作之间无间隔)，则用keep doing sthI kept hoping that they would have chance to come to China some day.我一直希望他们有机会到中国来。

2.keep sb doing sth与keep sb from doing sth前者指使某人不停地做某事，后者指使某人不做某事，两者意思几乎相反Iˈm sorry to have kept you waiting.对不起让你等了。/The rain kept us from going out.下雨使我们没法出去。