Because the result is permanent AV block, a permanent pacemaker is required. AF may still exist, but the pacemaker governs the ventricular response.是什么意思_Because the result is permanent AV block, a permanent pacemaker is required. AF may still exist, but the pacemaker governs the ventricular response.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句