我想了解一下成语接龙的具体规则，你能给我讲讲吗？讲述中请包含以下要点：接龙的基本方式、不能出现的情况和接龙结束的条件。请以三条道理式的表述Completing a chain requires...; Avoid repetition and non-matching words...; A chain ends when...形式分别对应上述要点进行表述。
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Completing a chain requires each player to provide a Chinese idiom (chengyu) that starts with the last character of the previous idiom in the sequence, ensuring a smooth and continuous flow of the game. Avoid repetition and non-matching words, meaning players must not repeat previously mentioned idioms and must start their idiom with the exact character that ends the previous one to maintain the coherence of the game. A chain ends when a player cannot provide a matching idiom or when a predetermined number of turns have passed without a continuation, signaling the conclusion of the round.
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