by yourself的用法did you make the cake yourself?与did you make the cake by yourself?这两种表达都可以?有区别?

by yourself的用法did you make the cake yourself?与did you make the cake by yourself?这两种表达都可以?有区别?
by yourself的用法
did you make the cake yourself?
与
did you make the cake by yourself?
这两种表达都可以?有区别?

by yourself的用法did you make the cake yourself?与did you make the cake by yourself?这两种表达都可以?有区别?
by yourself ..
ad.单独(独力地)
前句意思是 你是自己做的吗?
后据是 你是自己一人做的吗?