1. 名詞
   腦震盪
   震盪
   衝擊, 撞擊
   /此名詞可為可數與不可數名詞/
   /複數為"concussions"/
   

   同義字詞
   bump,collision,crash,impact,impingement,jar,jolt,jounce,kick,shock,slam,smash,strike,wallop
   collision,crack-up,crash,smash,smashup,wreck
   

例句

1. That was for a concussion in 2010.
2. I am thinking it was a concussion .
3. Concussion medicines are a at primary March.
4. And both players are at risk for a concussion .
5. He suffered a concussion and fractured vertebrae.
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