他在辩论中的论点如此严密,简直无懈可击。

His arguments in the debate were so well-structured that they seemed completely unassailable.

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His arguments in the debate were so well-structured that they seemed completely unassailable.

unassailable 是由前缀 un-(表示"不、非")和形容词 assailable(可攻击的)组成的复合词。assailable 来自动词 assail(攻击、质问)加上后缀 -able(表示"能够...的")。 unassailable 字面意思是"无法被攻击的",引申为"无懈可击的、无可辩驳的",形容论点或立场非常坚固,无法被反驳或推翻。

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