【keep in/from/off】

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keep in
1．control 抑制
*You should keep in your bad temper．你应该控制你的坏脾气.
*Jim was very angry but he kept himself in．吉姆很气愤,不过还是忍住了.
2．（make）stay indoors（使）留在室内
*It's best to keep in while the temperature is so far below freezing point．气温在零下很多度的时候最好不要外出.
*Bad weather has kept the children in for a week．糟糕的天气已经使孩子们在家里呆了一星期.
*We were kept in by the rain．下雨了,我们出不去.
3．continue burning 继续燃烧
*Will the fire keep in till we get back?这火能一直燃烧到我们回来吗?
*The stove will keep in all night if you put enough coal into it．如果在炉子里放足够的煤的话,这炉火可烧一夜.
4．detain after normal school hours （as a punishment,etc．）把（学生）留在学校晚回家（作为惩罚等）
*Our teacher was in a bad temper today．She kept us all in for half an hour．今天老师脾气不好,她把我们留在学校晚放学半个小时.
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keep from
1．not let others know it；not tell 保密
*You'd better keep the bad news from Mother．你最好不要把这坏消息告诉母亲.
*Keep the news from him；he will tell everyone about it．不要把这消息告诉他,他会见人就说的.
2．prevent from；hold back 阻止
*The government is considering further action to keep the pound from falling in value．政府正在考虑采取进一步行动以阻止英镑贬值.
*Urgent business kept me from attending the meeting．我因为有急事,所以没有参加会议.
*You'd better keep your daughter from going out at night．你最好禁止你女儿夜间外出.
3．hold oneself back from；stop or prevent oneself from doing sth．避免；不做某事；戒除
*He keeps from alcohol．他戒酒了.
*Can you keep from repeating gossip?你能避免搬弄是非吗?
*I hope you will keep from doing anything rash．我希望你不要做任何鲁莽的事情.
*The doctor advised me to keep from smoking．医生劝我戒烟.
*If you get to know him,you can't keep from liking him．你了解他以后,就不会不喜欢他.
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keep off
1．prevent from ing near使不接近
*Mary tends to keep off from people who try to be friendly too suddenly．玛丽一般不去接近那些突然变得亲热起来的人.
2．remain at a distance 勿走近；站在远处
*The police told the boys to keep off the grass．警察告诉孩子们勿踏草地.
*Keep off!Keep off!The train is moving．闪开!闪开!火车开动了.
*K