what goes over hill and vally ,makes a noise,but never leave
what goes up and never goes down?
what comes down but never goes up-
What goes up but never comes down?
what goes up but never comes up
what goes up but never comes down
what goes around the house and in the house,but never touche
What goes up and never comes down?
What always goes up and never goes down?
What goes up and never goes down?字谜
What always goes up and never goes down?是什么意思?
What goes all over the house,but touches nothing?
He never makes noise in class.翻译