they had rushed up to her while she was having a picnic at the edge of a forest with her children.
问题描述：
they had rushed up to her while she was having a picnic at the edge of a forest with her children.
请问,rush up to 是一个词组吗,或者还是up to是一个词组,如何翻译和理解这里
答
rush up to - - - - 是一个词组,解释为“从远处快速向- - - - - 冲去”
up ------ 往往有“由下往上”的意思
rush to - - - - 只强调“向- - - - - 冲去”,不考虑距离