palpitation [ˌpælpɪˈteʃən]

例句:

• What medicine is right neurasthenic is the palpitation effect that cause better?
  什么药对神经衰弱引起的心悸疗效比较好?
  
• Palpitation from frequent extrasystoles or other arrhythmia is common.
  来自频发的期前搏动或其他心律不齐的心悸亦属常见.
  
• The signora received his assurance with very little palpitation or appearance of surprise.
  “夫人”简直若无其事或毫无惊讶神色地接受了他这一坦白.