为什么welcome back to school前面有to,而welcome back home不能加to?schoo

为什么welcome back to school前面有to,而welcome back home不能加to?schoo welcome back to schoo welcome back to school. Welcome back to school.中文 Welcome back to school是什么意思 welcome back to school 和welcome to school 哪个对 Welcome back to here Welcome back to school.用中文怎么说 Welcome back.中 back是什么词性 back 前为什么不加to Welcome back to scool.中文翻译 Welcome back _____ .A.school B.factory C.to home D.home boys and girls,welcome to back home错在哪儿