Translation

• atom
• atomic

Examples

• 一个水分子是由两个氢原子和一个氧原子组成的。
  A water molecule has two hydrogen atoms and one oxygen atom.
• 我们身在原子能时代。
  We are in the era of atomic energy.
• 铁的原子序数是二十六。
  The atomic number of iron is 26.
• 这个婴儿盯著我的原子笔看， 并且伸手要拿它。
  The baby caught sight of my ballpoint pen and reached out for it.