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It has rained for three days 这个用法对吗?rain是动态动词,可以用于带‘for’的现在完

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It has rained for three days 这个用法对吗?rain是动态动词,可以用于带‘for’的现在完成时吗?
还是应该是 It rained for three days
It has been raining for three days
这三种说法都可以.
It rained for 40 days during the flood.
It has rained for days and the fields are flooded.
rain虽是动词,但可持续,可用for表现在完成时,以强调结果