welcome back to school.请问这算什么句型,有没有主语谓语宾语

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 welcome back to school 和welcome to school 哪个对 欢迎回家用welcome如何造句1.welcome come back?2.可不可以 welcome to come back? 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, Welcome to come back to our class是不是错的?