石油化工的未来在于高附加值、低碳产品。

The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.

冒险与折磨之间的区别在于态度。

We have a passion for keeping things simple.

Memory is what we thought we’d forgotten; it’s also what we thought we’d remember.

价的概念是理解分子结构的关键。

在计算学习领域，关键不仅在于学习，而在于高效地学习。