短语词组短語dropped -beat pulse 脈搏短絀;歇止脈;間歇脈atrial dropped beat 心房漏搏single dropped beat 單次脫漏搏動ventricular dropped beat 心室收縮脫落sinoatrial dropped beat 竇房漏搏The beat just dropped 重複上麪的一段 返回 dropped beat