Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/203c9cf85fc097225d48622d5af8849c.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 symmetrical four-pole sounding是什么意思，symmetrical four-pole sounding的翻译，symmetrical four-pole sounding音标、读音、用法和例句_歐米惠必应词典