welcome to back和 welcom back哪个对?请问那一种表达是对的,为什么对,错的为什么不能那样写?

welcome back to school 和welcome to school 哪个对 Welcome back to school. welcome back to schoo welcome back to Welcome to back改错 Welcome back to school是什么意思 Welcome back to school.中文 Welcome back to scool.中文翻译 Welcome back to here改错 Welcome to be back 还是Welcome back 哪个正确呢? Welcome Welcome Welcome back 欢迎回家用welcome如何造句1.welcome come back?2.可不可以 welcome to come back? 为什么welcome back to school前面有to,而welcome back home不能加to?school和home不都表示地点吗? welcome to back home 为什么不对? Welcome back to school是什么意思快 Welcome back to school.用中文怎么说 Welcome back! welcome back,