come back from和back from存在吗

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/06/13 15:37:06

come back from和back from存在吗
用了come 是不是就不用be

是,有come就不需要be.
比如我从伦敦回来：
I come back from London.
I am back from London.
虽然俩者都是我从伦敦回来的意思,但是用come,表示从伦敦回来不久,而Be则表示了一个状态了,我是从伦敦回来的.
这就是语法的感觉.

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