what does everybody do at the same time?how long should your legs be?what has four legs and a back but can not walk

问题描述:

what does everybody do at the same time?how long should your legs be?
what has four legs and a back but can not walk

Ok ,lady,let me tell you something with four legs and a back but can not walk ,for example ,a desk(桌子) ,a stool (凳子) and so on.Wish you good luck ,and I really hope you can understand.