The properties of macromolecular substances are determined not only by the nature of their building blocks but also by the arrangement of these blocks in space.
高分子物质的性质不仅取决于其构建单元的性质，还取决于这些单元在空间中的排列方式。
The mining industry has a responsibility to leave communities better than we found them.
If you have an apple and I have an apple, and we exchange apples, we both still only have one apple. But if you have an idea and I have an idea, and we exchange ideas, we each now have two ideas.
