What my friend sold me is more expensive than others.

many things are cheap, few things are expensive, scattered things are light, and gathered things are heavy. According to the query of Cocoa Poetry Network, "What my friends sell me is more expensive than others. Poems are more expensive, fewer are more expensive, scattered is lighter, and gathered is heavier." Ancient poems, that is, ancient poems in China, refer to China's poems before the Opium War in 184.