on in at 怎么区分?1986May 26,1986the morning of May 26,1986类此这样的
3个回答

一般在年份、月份、大地点、季节前用in 如in 1986 / in winter / in the moring / in NingXia

具体到某一天用on 如on May 26 ,1986

具体的某个时刻、小地点 用at 如at seven pm /at station