第2个回答 2013-10-01
at weekends; on weekends;at the weekend;;;
on the weekend; ;
on Saturnday and Sunday;
我们在周末聊了这些话题。
And so it went for the weekend.
;
on the weekend(s), at the weekend(s), over the weekend(s), during the weekend(s)
on Sunday,比较通常的讲法
还有如果指明是哪个周日,如本周日,this Sunday,上周日,last Sunday,直接用,前面不用介词本回答被提问者采纳