一般只说 ask sb a favour 或者 ask a favour of sb 要用from的话,可以这样:ask for a favour from sb (意思一样) 如: ask a favour of sb. 请求某人帮忙 I must ask you a favour. 我求你一件事. I want to ask a favour of you; will you lend me your car? 我想求你帮个忙,你能把汽车借我用一下吗? .May I ask a favour of you (ie ask you to do sth for me)? 请您帮个忙行吗? 请及时采纳,不懂继续问( 天天在线 )