You can't run away from that. 你可跑不掉。

　　I am going to run away from you. 我要离你而去了。

　　Did he run off to see his mom? 他急忙离开是为了见他妈妈吗？

　　Some children choose to run away from home.  有些孩子选择离家出走。

　　They must have difficult lives.  他们肯定活得很不容易吧。