palpitations

US [ˌpælpɪˈteɪʃənz]
UK [ˌpælpɪˈteɪʃ(ə)nz]
  • n.心悸
  • Web心悸亢进
palpitations
n.
1.
心悸a physical condition in which your heart beats very quickly and in an irregular way
Just the thought of flying gives me palpitations(= makes me very nervous) .
一想到飞行我的心就怦怦地跳。