we welcom the visitors from all over the world.此句中的all over

we welcom the visitors from all over the world.此句中的all over from all over the world? the London Eye,visitors,all over the world,come to,many,from all over the world we should make friends from all over the world里的all over等于 we have friends all over the world和people come from all over 英语people from all over the world from all over the world 有无语法错误? all over the world中的all over是什么词性 All the over the world from all over the country 跟from around the world from all over the world==== all over the world 吗