on weekends 和 at the weekend 是不是相同的意思?如果不同,他们各自的意思是什么?

at weekends和on weekends的区别 有on the weekends吗一般好像听过on weekends和on the weekend是________the weekends呢?at? on weekends、at the weekends、at weekends、on the weekends有什么区别 on weekends=at the weekends吗?或是on weekends=at the weekend还是on weekends=at weekends at weekend,on weekend,at the weekend ,on the weekend,on the weekends,at weekend和on weekends区别?at weekend,on weekend,at the weekend ,on the weekend,on the weekends ,at the weekends,at weekends和on weekends的区别? 在周末的英语除了on the weekends 和at the weekends 以外还有什么表达方式 是on the weekends还是at she weekends详细和为什么 at the weekends跟on the weekends的区别 区别at the weekends,on the weekend,at weekends,on weekendsat the weekends,on the weekend,at weekends,on weekends都有些什么区别?各自的意思是什么? on weekends和at weekends有什么区别? at weekends和at the weekend 区别 at weekend,on weekend,at the weekend ,on the weekend和on weekends的区别?尽量详细些... 区别at the weekends,on the weekend,at weekends,on weekends 我要北京四中网校的答案 on the weekend ,on weekends at the weekend ,at weekends 分别表示某个固定的周末和一般性的每个周末.怎么理解这些 at the weekends和at the weekend和at weekend和at weekends有什么区别 翻译At 11 in the evening on weekends and 6 in the afternoon at weekends their teacher sometimes does the housework at home on weekends改为一般疑问句和否定句 是“at the weekends还是“at weekends?