Basic explanation:
1. Gu Tong's Diligence: "A king is a civil servant ~ a laborer."
2. Last name.
Explain in detail:
shape
1. Such as: hard work (hard work), hard work (hard work), hard work (hard work), hard work (hard work), hard work (hard work), hard work (hard work).
2. Same as "diligence". Careful and serious. Tired (earnest)