what man always opens doors but never goes inside?
what man always opens doors but never goes inside?
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 always goes up and never goes down?
What always goes up and never goes down?是什么意思?
What thing always goes up,and never comes down
英语翻译What always goes up and never goes down?What’s black whe
英语IQ题:what goes up but never comes down?
what alway goes up,but never come down?
what comes down,but never goes up?先英翻中再解题