如果你把所有牌都凑成了搭子，那就胡牌了。 胡牌可以防止对手金胡。 如果你的总米牌分小于等于十分，才能结束游戏。 向你的对手展示你的牌组或顺子。 把米牌放在胡牌人的牌组或顺子中。 没有金胡之前，才能贴牌。 从对手米牌分中减去你的米牌分。 非胡牌人也可能反转获胜。 一位玩家的累积积分为100分，游戏结束。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Knocking is how you end gameplay. If you reach a point when all of your cards are part of a meld and none of them are unmatched (these cards are called “deadwood”), then you've reached “gin.” Draw a card once it's your turn and place it face-down on the discard pile to signify that you're knocking.  Reaching gin earns you 25 bonus points in addition to all your opponent's deadwood points. You can physically knock on the table if you want to, but the face-down discard is generally accepted as the