Su Pan'er chuckled lightly, turning her head towards Qin Yi: "Do you believe what he said?"
"I do."
Qin Yi solemnly answered: "Because, he speaks impeccable official language."
Official language, that is, the language that officials in this era must learn. It's similar to the common language in later eras, and it's the common language of officials.
"The local dialects are different everywhere, only the Capital has it right."
After all, officials come from all over the country, speaking various local languages. Naturally, the emperor sitting on top cannot cater to his subjects, hence the official language was introduced, allowing the emperor to communicate smoothly with his subjects.
Su Pan'er was stunned, a boy in his early teens could actually speak the official language?
What did this indicate?