来自《耶鲁大学开放课程：生物医学工程探索 第9集 第9集》

• 
  
  feels like a little pellet underneath your skin.
  会感觉皮肤下面有个小球
• 
  
  And this fluid eventually starts to leak out
  这些液体最终会流出来
• 
  
  and those lesions would heal,
  伤痕也会痊愈
• 
  
  but they leave scars in most cases.
  但大部分情况下会留下疤痕
• 
  
  These are very deep lesions
  这些伤非常深
• 
  
  that go not just on the surface of your skin like a blister would,
  它们不仅像水泡那样存在于皮肤表面
• 
  
  but down into the dermis or deeper layers of the skins, as well.
  还深入到真皮层或者皮下更深的地方
• 
  
  In fact, certain areas of the skin would be impacted most,
  事实上 皮肤某些区域将受到严重伤害
• 
  
  most dramatically,
  尤其触目惊心的是
• 
  
  the face and the chest, the arms,
  在面部 胸部和手臂位置
• 
  
  but more distal point of the arms, like the palms of your hands.
  很多都出现在手臂的末端 比如手掌上
• 
  
  And so you can imagine that even in its—
  你可以想象这些 即使在