Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/6659d6aa927f8648e53b4fa75ef5a6df.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 proportional sampling是什么意思，proportional sampling的翻译，proportional sampling音标、读音、用法和例句_果味酸柯林斯词典