Despite the successes of the U20 Asian Championship, there are several challenges to overcome. One major issue is the disparity in skill levels between teams. Strong teams like Japan, South Korea, and Iran often outshine others, especially teams from developing countries, leading to an imbalance in the competition and less spectator engagement.Ví dụ, nếu bạn có bộ bài 9♠ 9♦ 9♣ 9♥ K♠, bạn có một tứ quý 9 và lá bài cao nhất là K.2.9. Straight Flush (