Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/0a470d72a2f059d10d0413adeb49fc5c.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 background equilibrium condition是什么意思，background equilibrium condition的翻译，background equilibrium condition音标、读音、用法和例句_沉淀汉英词典