a day与one day 区别

问题描述:

a day与one day 区别

one day可指过去或将来 某一天
some day 特指将来有一天
而a day 用法在英语中很少,一般会加adj 比如a happy day a hot day

a day 一天 I stayed there for a day
one day 某一天(可作时间状语) He came to see me one day.