on thursday与on thursdays具体的区别

I have music on Thursdays.的问句 What classes do you have on Thursdays?为什么Thursday后面加s? every other week on Thursdays “What bo you have for lunch on Thursdays?”的中文 keep on与continue on的区别.具体是：They ()on walking until they foun dependent of 与dependent on 的具体区别 arrive in与arrive at arrive on的具体区别 do,have,on,what,you,Thursdays What do you have on Thursdays是什么意思 what classes do you have on thursdays? feed on与live on的区别 depend on 与dependent on的区别