Level 6 · word 13,944 of 20,000

concussion

/kənˈkʌʃən/ American
  • n. 震动, 脑震荡
Definition
  • n. a violent shaking, or a temporary brain injury caused by a hard blow
Example
The player suffered a concussion after hitting his head on the floor.
那名球员头部撞到地板后得了脑震荡。