Ph.D是什么意思，Ph.D的翻译，Ph.D音标、读音、用法和例句

Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/5148418e78c131f82fa9f2621533836c.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59
Ph.D是什么意思，Ph.D的翻译，Ph.D音标、读音、用法和例句_果味酸柯林斯词典