ask for  拜托某事

　　You don't have to ask for my permission. 你不需要得到我的允许。

　　Why didn't you just ask me for the money? 你为什么没有向我借钱？

　　She didn't really ask for you, she asked for me. 她找的其实不是你，而是我。

　　I need to ask for some help here.  我得找个人来帮帮忙了。

　　You name it. What can I do for you? 说说看，我能不能帮到你？