Idk. . . it seems that, if a Russian speaking person moved to the US and they learned English from someone who only speaks english, they wouldn't have a Russian accent. . .
@Jackcrevol probably knows. . . otherwise I may be kidnapping a Russian, or any foreign language speaking hooker, and teaching them English to see what happens. . . unless someone knows an easier way to find out. . . I'm really curious about this for some reason.
Maybe the memory of the way they move their mouth and tongue to speak Russian words would effect how they pronounce English. It just seems that they'd sound like the person who taught them. . . anyway, guess ima little bored this evening.