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He tries to keep his professional life separate from his pri

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He tries to keep his professional life separate from his private life.
这句中keep.separate from.是keep sth do 这个结构吗?感觉没这个结构,总觉得这个句子是错的,如果这是个简单句,为什么有keep 和separate 两个实义动词?
He tries to keep his professional life separate from his pri
你这个句子里用了两个复合句型都是固定用法
一个是keep sth. separate from sth.
另外一个是try to do sth.
你这个句子是对的,没有错,只是复合了两个结构,第一重是try to do sth.,第二重是keep sth. separate from sth.所以你感觉一个句子中怎么有几个动词原型的道理就在这里,这是个特例.
再问: keep是使役动词,如使役动词let,可以是let sb do sth. 难道不能说keep sth do sth 是吗?
keep sth. separate from sth.是特例吗?
再答: 不是的,同学,这是固定用法,没有为什么,你要记住去用就好了,就像是公理,大家约定俗成的东西。
keep sb. doing sth.让某人一直干某事
keep sb. to do sth.让某人做某事。记住不是keep sb. do sth.
keep A separate from B 将A与B分开 这是固定词组,你不要把它孤立为单个动词来理解,你就当它是特例吗,记住用就好了。学英语多问几个为什么很好,但有些东西是要死记硬背的。