时间+later还是late?

时间+later还是late? an hour later 还是Late late的比较级是later还是latter? 是late autumn还是later autumn?为什么? It shouldn't be an hour late还是later? by=not late than还是not later than later和late区别 late later的区别 late 与later区别 later,late区别是什么? 一年后是用a year after 还是 a year late 还是a year later? late是方式副词还是时间副词?