这种重资产模式在初期投入巨大，但在价格战进入白热化的阶段，它便构成了难以复制的成本护城河。
治政之要在于安民，安民之道在于察其疾苦。
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They still dominate an industry that is now estimated to be worth billions across the globe. But increasingly, South Korean entertainment is making a play for what analysts believe is a booming market. Now, artificial intelligence (AI) is poking its head round the corner, promising lower costs and more opportunities.