how's it going?
Consider this hypothetical scenario: John moved to the US at a fairly young age and when he moved back to his home country he found it hard to communicate with the locals on matters relating to his expertise (he's a medical doctor btw). He had to resort to "Chinglish" from time to time when talking about medical stuff. For every English jargon he almost always failed trying to find a corresponding term in Chinese.
Given all I just said, how would you describe his situation using the following construction?
His body of knowledge about medicine was ...