太阳，尽管有那么多行星围绕它并依赖它，仍然能够成熟一串葡萄，仿佛它在宇宙中没有其他事情可做。
There is a great deal of unmapped country within us which would have to be taken into account in an explanation of our gusts and storms.
I don't let anyone take away my hope.
Natural experiments can provide valuable insights into economic questions.
不能察觉事情发生前所显示出的端倪的人，灾难就要降临到他身上。
Collaboration across industries and borders is essential to meet the world's energy needs.