Well, yes and no.  One particular fan-translation had Sveta's particular...curse of choice as 'shitbiscuits' as well, but that's because the curse she used in Japanese had no real equivalent to the English language, as it were.  "Hey!  Stop laughing, goddammit!  It's not all that fuggin' funny!"  This was just making him - her - him madder, and causing her - him - her to swear harder.  The worst (best?) thing about it was all this language was coming out of her mouth in this sweet 'Onii-san!' voice.  She pouted, even though Yang couldn't see it.  "Meanie.  Making fun of me!"