uphill gradient是什么意思，uphill gradient的翻译，uphill gradient音标、读音、用法和例句

Warning: file_put_contents(): Only 0 of 5043 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/oclz.com/index.php on line 55
uphill gradient是什么意思，uphill gradient的翻译，uphill gradient音标、读音、用法和例句_菜篮子兴趣思朗文词典