Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/0ad1abff3e5e2258630914746bde325b.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 backward sloping supply是什么意思，backward sloping supply的翻译，backward sloping supply音标、读音、用法和例句_按摩法牛津词典