Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/6bca330aed01b9373fbc50704606665c.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 open back rounded vowel是什么意思，open back rounded vowel的翻译，open back rounded vowel音标、读音、用法和例句_果味酸柯林斯词典