Level 6 · word 13,466 of 20,000

adrenaline

/əˈdrenəlɪn/ American
  • n. 肾上腺素
Definition
  • n. a hormone that increases heart rate during excitement or fear
Example
Her adrenaline spiked as the roller coaster raced downhill fast.
过山车飞速俯冲时,她的肾上腺素飙升。