英语every four years为什么year要加s,不是every加单数吗?
英语every four years为什么year要加s,不是every加单数吗?
every fourth year和every four years一样吗
every four years和every fourth year一样吗?
every后面不是加单数可数名词,为什么要说every means 而不能说every mean?
every four years 与 every third year every fo
very four years every other year every few years
every 后加第三人称单数吗?
every other three years every four years 和every fifth year相等
为什么Six Years Old.中Year要加S呢?
he is 18 years old.为什么year要加S
every year 与every years
he wins every time 为什么win要加s