concussion
美 [kənˈkʌʃ(ə)n]英 [kən'kʌʃ(ə)n]
- n.脑震荡
- 网络震动;冲击;撞击
复数:concussions

concussion
1.脑震荡a temporary loss of consciousness caused by a blow to the head; the effects of a severe blow to the head such as confusion and temporary loss of physical and mental abilities
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