And differences in the composition, size, and position of those impurities can make the freezing point of water vary by several degrees.

这些杂质在构成、大小和位置方面的不同会让水的结冰点有几度的区别。

Diverse Worlds with Unique Stories There are eight recognized planets in our Solar System, each distinct in its composition, size, and history.

行星：具有独特故事的多元化世界我们的太阳系中有八颗公认的行星，每颗行星的组成、大小和历史都各不相同。