A year later a neighbour, Professor Tyrtov, presented her family with a physics textbook which he had written, and Sofia attempted to read it.
Ang isang taon ng isang kapit-bahay, Professor Tyrtov, ipinapahayag ang kanyang pamilya sa isang physics aklat-aralin na niya na nakasulat, at Sofia tinangka upang basahin ito.