concussions例句

People who have concussions often trouble thinking or remembering.
患脑震荡的人通常存在思考和记忆障碍.

Concussions also make a person feel very tired or angry.
脑震荡也会使人感觉疲倦或愤怒.

Some concussions are more severe than others.
某些脑震荡后果较常规更为严重.