粗中有细

Explanation: Surface appears rough, casual, but they're careful, careful 　　Usage: Contraction type; as the predicate attribute; describe the surface rough, very carefully the actual 　　Source: Ming Wu Cheng-en, "Journey to the West" 55 back: "Drifting heard, was overjoyed and said: 'Good! Good! Good! Is crude and refined, it really anxious at the leniency'." 　　Examples: "Three Kingdoms" is a ~ in the general Zhang Fei. 　　Results: Put a large tank needle; desk pen; night over Bavaria Yan Yan 　　Postscript: Put a large tank needle; desk pen; night over Bavaria Yan Yan