on the weekend,这个怎么读.

on the weekend,这个怎么读. on the weekend/ in the weekend/ at the weekend.三个短语怎么区别? on the weekend or at the weekend I usually play the piano on the weekend怎么问 what do you usually do on the weekend?怎么回答 weekend what you do on do the怎么排序? What do your grandparents do on the weekend?怎么回答? 我们说 on weekend ,at weekend,还是in the weekend 一下短语有什么用法区别?At weekend.On weekend.At the weekend.On the weekend. () the weekend in or on? 关于on weekend和on the weekend的问题是on weekend还是on the weekend,还是两者都可以? on weekends以及on the weekend 区别 on the weekend 和over the weekend的区别 over the weekend与on the weekend的区别! at the weekend 和 on the weekend的区别 应该用on the weekend 还是 in the weekend? at weekend,on weekend,at the weekend ,on the weekend和on weekends的区别?尽量详细些... in the weekend on the weekend over the weekend unin the weekendon the weekendover the weekendunder the weekend那个对?