Sunday Quotes And Blessings. On sunday 是特指一个星期天 英 [ɔn ˈsʌndi] 美 [ɑn ˈsʌndi] 例如:i will leave on sunday. So the use of the on in the second sentence is unnecessary.
On sundays 是指一般的星期天 例如 i swim on sundays. Besides, if you say you do something on sunday (s), monday (s), etc. We met on sunday evening.
So The Use Of The On In The Second Sentence Is Unnecessary.
Besides, if you say you do something on sunday (s), monday (s), etc. 星期一：monday（mon.） 星期二：tuesday（tues.） 星期三：wednesday（wed.） 星期四：thursday（thur./thurs.） 星期五：friday（fri.） 星期六：saturday（sat.） 星期. It's on sunday means that something is scheduled or planned to happen on a specific sunday in the future, while it's sunday today means that today is currently sunday.
On Sunday 是特指一个星期天 英 [Ɔn ˈSʌndi] 美 [Ɑn ˈSʌndi] 例如:I Will Leave On Sunday.
We met on sunday evening. , it also conveys the sense that you do it on. 这是现代英语的简化用法，即on this sunday时，介词on会省略掉。 on sunday和this sunday的区别为： 一、指代不同 1、on sunday：在星期日。 2、this sunday：这个星.
Besides, if you say you do something on sunday (s), monday (s), etc. So the use of the on in the second sentence is unnecessary. It's on sunday means that something is scheduled or planned to happen on a specific sunday in the future, while it's sunday today means that today is currently sunday.