Today we give you the keys to the Middle Kingdom, in the form of two magical sounds that will amaze and baffle your conversation partners in turn. Used with judicious moderation, this disyllabic incantation will let others know you're doing just fine, and there's no problem whatsoever. Used maliciously, it can buy you enough time for a quick getaway on whatever rustabout Soviet construction equipment happens to be nearby. Not that we're advocating theft. Seriously.