题目内容：

every four years和every fourth year一样吗?

优质解答

every fourth year =every four years every 与基数词、序数词、other 和few 连用,表示时间或空间的间隔,意为“每……；每隔……”.如：He comes here every three days (every third day).他每三天(每隔两天)来这儿...