古文之难，难于上青天。
写作古文的难度，比登上青天还要难。
数字时代最危险的不是犯错，而是错过机会。
A tannery’s legacy should be measured by its environmental stewardship.
Chinese dairy industry must combine international vision with local practice to go global.
Transparency in aquaculture practices builds trust with consumers and drives long-term success.