生齿日繁

Explanation: Tooth: refer to the population; Fan: Multi. Population multiplied day by day. 　　Source: Song Cheng Yi "on the ten things Sapporo child" this is not shaken. Cross-rich counties and Mo ended, the poor starving and displaced Mo-shirts, though there are many fortunate people and lack of food and clothing, covered pole without discipline, without whom tooth increasingly complicated system. " 　　Examples: Yu purple jungle conditions, sub-divisions of the people without dependents. ~ Shall mud Furu Chen made chai! (Qing Nguyen Health "Guests words" volume fourteen)