Warning: file_put_contents(/www/wwwroot/ppbbu/bieo.cn/cache/b32c08cd38f90fe0ff97d85c45d9a44f.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/bieo.cn/index.php on line 58 marginal physical productivity是什么意思，marginal physical productivity的翻译，marginal physical productivity音标、读音、用法和例句_衣物護欧路词典