The roar of a forest fire,the flash and thunder of lightning,the sudden release of energy in an explosion -- these happenings are the results of the action and interaction of atoms and molecules.

 
  • 森林大火的引发,闪电和雷声,爆炸中能量的突然释放,这些都是原子和分子的作用和相互作用的结果。
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