Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/ffe8539d99600a3a18c82734cf2c83f2.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 optional sampling是什么意思，optional sampling的翻译，optional sampling音标、读音、用法和例句_歐米惠必应词典