mother would count out to her a bag of laundry that had accumelated over several weeks
问题描述：
mother would count out to her a bag of laundry that had accumelated over several weeks
请教英语大师们,为什么是had accumulated而不是had been accumulated.如果是从accumulate 是个不及物动词方面解释的话,好像也不太适合,英语这个单词也可以是及物动词.
答
这个词既可以及物,也能不及物,所以按语法来说,二者均可.但是一般来说,这个词英美人习惯用不及物的用法