题目

一段英语最后一个英语句子的问题11-2
In my fridgeless Fifties childhood,I was fed well and healthily.The milkman came daily; the grocer,the butcher,the baker,and the ice-cream man delivered two or three times a week.The Sunday meat would last until Wednesday and surplus bread and milk became all kinds of cakes.Nothing was wasted,and we were never troubled by rotten food.Thirty years on,food deliveries have ceased; fresh vegetables are almost unobtainable in the country.这里最后一句 thiryt years on 还有cease是瞬间动词怎么能用完成时?

提问时间：2021-03-05

答案

thiryt years on 是“三十年后”或者“三十年过去了”的意思.
瞬间动词的现在完成时也是成立的,你这么多虑有点太较真了.