[@ClocktowerEchos]
Zhou grew up among pirates, who, I don't think, know that many languages. And since he became royalty at 15, and he's currently 18, it doesn't seem very reasonable for someone to learn over half a dozen languages. English is a very complicated language, and he didn't just learn that, he also learned Spanish, Russian, Chinese (presumably native language), Japanese, Korean, and too many others.

Come on, Clock. Your character sheet says nothing of him learning a great deal of things, such as a great slew of complicated languages. 

Stay in character, if you would.