Warning: file_put_contents(): Only 0 of 6054 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 be motivated purely by self-interest是什么意思，be motivated purely by self-interest的翻译，be motivated purely by self-interest音标、读音、用法和例句_魏碑心思朗文词典