English translation of '至于'

介

1. as to
   ⇒ 我已经尽了力,至于行不行,就全凭运气了。 (Wǒ yǐjīng jìnle lì, zhìyú xíngbùxíng, jiù quán píng yùnqi le.) I've done what I can, so as to whether or not it will work, all I can rely on is luck.