Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/a76483a8d1262e453362225a890ad885.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 unary predicate calculus是什么意思，unary predicate calculus的翻译，unary predicate calculus音标、读音、用法和例句_沉淀汉英词典