委员会公开辩论了这些复杂的问题。

These complex issues were debated openly by the committee.

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These complex issues were debated openly by the committee.

debated 是动词 debate 的过去分词形式,在句中表示被动语态。debate 的意思是"讨论、辩论",指对某个议题进行正式的讨论或争论。debated 在这里表示"被讨论/辩论"的意思。

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