人情练达
experienced in the ways of the world;worldly wise
世事洞明皆学问，～即文章。(《红楼梦》) A grasp of mundane affairs is genuine knowledge;Understanding of worldly wisdom is true learning.(A Dream of Red Mansions)
人情练达rén qínɡ liàn dá
练达：熟悉通达。指非常通晓为人处世的经验。experienced in the ways of the world, worldly wisdom, understanding of world wisdom