Doctors also treat irregular heartbeats with another device called a pacemaker.医生还会使用另外一种称为“心脏起搏器”的设备来治疗心律不齐.A sad and lonely tune. There's only piano and heartbeats. Nothing else.悲伤孤独的旋律, 唯有钢琴与心跳, 别无其他.Smoking coul...
Smoking could lead to irregular heartbeats.吸烟会引起心律失常。Doctors also treat irregular heartbeats with another device called a pacemaker.医生还会使用另外一种称为“心脏起搏器”的设备来治疗心律不齐.A sad and lonely tune. There's only piano and heartbe...