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Continue to ChatEP31:ข้อควรระวังเรื่อง Margin https://underdog.run/ep31%e0%b8%82%e0%b9%89%e0%b8%ad%e0%b8%84%e0%b8%a7%e0%b8%a3%e0%b8%a3%e0%b8%b0%e0%b8%a7%e0%b8%b1%e0%b8%87%e0%b9%80%e0%b8%a3%e0%b8%b7%e0%b9%88%e0%b8%ad%e0%b8%87-margin/