During the debate, he was carried away by his emotions and said things he regretted.

was 是 be 动词的过去式，表示被动语态。 carried 是动词 carry 的过去分词，carry 本意是"携带、运送"，在被动语态中表示"被...带走"。 away 是副词，表示"离开、远离"。 carried away 是一个固定短语，字面意思是"被带走"，引申为"失去自制力、被冲昏头脑"的意思，常用来形容因情绪激动而做出不理智的行为。