Vasily questions the realness of these physicians, especially seeing as this Huaisang seems more archaic with every additional word he has to gauge his patterns of speech from. He doesn't know exactly where in China he's coming from, let alone what era, but he suspects even an artist's knowledge of anatomy would be limited— religion and mysticism have always interfered with the study of anatomy, even before the Catholic and Orthodox churches established their chokehold on the general populace. There was so much even they didn't know back in the thirties.

"I can show you what I was taught if you would like. I will be here for... long time, probably."

Undoubtedly, he'll need to default to his own language to explain some of it - but it's not like Huaisang has any frame of reference by which he can identify what a Chinese man from the 1930s sounds like any better than he, Vasiliy, can pinpoint a time in history for the other party's Russian analog, so it's a lot safer a gamble than it would be with a lot of these people.