出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第157页（248字）
形容道理不足，没话好说，例他强词夺理的诡辩被王先生驳斥得理屈词穷，只好闭口不言。
His ridiculous and far-fetched arguments having been thoroughly refuted by Mr．Wang，he was reduced to silence when he realized he stood on very shaky grounds．