back home i contacted the Dean again.这里的back home是什么成分?或者说起什么语法作用?

分类: 作业答案 • 2022-01-09 18:05:51

问题描述：

答

时间状语.完整的应该是When I was back home,i contacted the Dean again
省略之后可以去掉逗号变成了back home i contacted the Dean again