I'll study about Internal exposure today

  •  
  • 132
  • 0
  • 0
  • English 
Feb 27, 2012 06:43
I'll study about Internal exposure with my friends today.
They don't know it too much.
I think it is important for us to understand it.
We have to protect our children.
We have to do our family.
I hope noone will be hurt by radioactive material more than this.
So we all have to study about it.
Learn English, Spanish, and other languages for free with the HiNative app