英语一天隔一天,两天隔两天 怎么说啊>?

every other day，就是一天隔一天
every two days, 两天隔两天
这点同样适用于week, month, year

每隔一天就是每两天的意思,也就是说 every other day=every two days
每隔两天是 every third day
每隔三天是 every three days

A day every a day, two day every two days