Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/2d8c12b8ab50bfcf2cd8a25dd989a581.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 exponential decline equation是什么意思，exponential decline equation的翻译，exponential decline equation音标、读音、用法和例句_果味酸柯林斯词典