打个简单的比方,“狗有四条腿”成立,反过来“有四条腿的就是狗”显然就是错误的了。
实际上,肚脐结扎
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%CD%B8%D2%95%B6%FE%8F%88%D1%A5%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
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