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ph.
- 循環賽
- （文件上）圓形署名（隱蔽簽名順序）
- 【軍】不著陸往返飛行
辨析
以上來源於：《英漢大辭典》
n.
- a tournament in which each competitor plays in turn against every other.
- a petition, especially one with signatures written in a circle to conceal the order of writing.
以上來源於：《簡明牛津英語詞典》
