Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/83fd49b117677d8c61d0c7410a5ac4bd.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 envelope cost curve是什么意思，envelope cost curve的翻译，envelope cost curve音标、读音、用法和例句_按摩法牛津词典