Warning: file_put_contents(): Only 0 of 4903 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 QED英英字典_QED剑桥英语解释_QED柯林斯英文解释_沉淀汉英词典
abbreviation for the Latin phrase "quod erat demonstrandum": written or said after an argument to show that you have proved something that you wanted to prove 证毕,证讫(拉丁语quod erat demonstrandum的缩写) 返回 QED