this factory has been open for twenty years.为什么是open 而不是opened
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this factory has been open for twenty years.为什么是open 而不是opened
this factory has been open for twenty years.为什么是open 而不是opened
this factory has been open for twenty years.为什么是open 而不是opened
这个地方be open中open是形容词而不是动词,短语的意思就是开业.
这家工厂已经开业/建立二十年了.
本来就是opened
这里OPEN是形容词不是动词,不用加ED了
for twenty years 一段时间 不能和短暂性动词连用。open 用形容词替代。故是 open
open作为动词,是个非延续性动词,不能跟for引导的一段时间状语;而be open中的be动词是延续性动词,open是形容词,be open表示状态,故可以跟for引导的一段时间状语。
How long has this factory been open这句话转变成这样可以吗How long has been factory open
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this factory has been open for twenty years.为什么是open 而不是opened
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