heartbeats

例句:

• This instrument monitors the patient's heartbeats.
  这台仪器监听病人的心跳.
  来自《简明英汉词典》
• The monitor showed premature ventricular contractions, abnormal heartbeats that often precede cardiac arrest.
  来自NEWYORKER
• 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.
  
• Heartbeats can easily be heard using a good stethoscope.
  来自SA
• The whole town reverberated to the clang of the looms pounding like a heartbeats.
  来自NEWYORKER