Warning: file_put_contents(/www/wwwroot/ppbbu/www.30232.com/cache/64e9f391b0da27f02da771adb8354040.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 upward diffusion mechanism是什么意思，upward diffusion mechanism的翻译，upward diffusion mechanism音标、读音、用法和例句_绍翊字体网有道词典