You don't convince me for all your clever arguments.尽管你的论证很巧妙,但还是不能说服我。
For all his education, he's pretty dumb when it comes to home repair.尽管他受过教育,但说到家居维修,他就很低能了。
2
— used in phrases like for all someone knows and for all someone cares to say that someone does not know, care, etc., about something用于for all someone knows、for all someone cares等短语,表示对某事不知道、不关心
For all I know, she's still there. [=she may still be there, but I don't know]说不定她还在那里。
For all he cares, we might as well be dead! [=he doesn't care if we're dead or not]他才不关心我们是死是活呢!