Level 3 · word 2,787 of 20,000

molecule

/ˈmɑːləˌkjuːl/ American
Picture: molecule
  • n. 分子, 微量
Definition
  • n. the smallest part of a substance that has all its chemical properties, or a very small amount
Example
Water is made of two hydrogen atoms and one oxygen molecule.
水是由两个氢原子和一个氧分子组成的。