So... it's been a year for me and the situation haven't changed :-( She understands everything although every once in a while she will say what's that mean??? She is now 3.5 yo. I also have 19 ms old and I've been trying to get the two of them talk to each other in Polish. I'm telling them that it is their secret language as no one can understand them. So far-no luck. We are going to Poland in July for 2 weeks-we'll see how they will do there!