石油化工行业的未来在于可持续发展。

The search for reciprocity laws is a fundamental theme in the history of mathematics.

If you're offered a seat on a rocket ship, don't ask what seat! Just get on.

如果两个人编写的程序完全相同，则每个人都应放入微码中，然后他们肯定会不同。

实现明天的唯一限制将是我们今天的疑虑。