Warning: file_put_contents(): Only 0 of 6025 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 premature ventricular contraction是什么意思，premature ventricular contraction的翻译，premature ventricular contraction音标、读音、用法和例句_沉淀汉英词典