Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/e0a58b083b895d1aa062ddb1ebd8f8ab.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 rotational sum rule是什么意思，rotational sum rule的翻译，rotational sum rule音标、读音、用法和例句_沉淀汉英词典