Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/e933d2995109b3ade598abfeec4a0ccf.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 preoperation period是什么意思，preoperation period的翻译，preoperation period音标、读音、用法和例句_沉淀汉英词典