Nancy can't find her bike,so she goes to the teacher for help.中为什么用for?

Nancy can't find her bike,so she goes to the teacher for help.中为什么用for?
Nancy can't find her bike,so she goes to the teacher for help.中为什么用for?

Nancy can't find her bike,so she goes to the teacher for help.中为什么用for?
for有表示目的,到老师那儿,为了寻找帮助.或者说为了得到帮助去老师那儿.还有go to the police for help向警察寻求帮助.