可持续增长需要在技术和人才两方面都进行投资。
Sustainability isn't an option; it's a responsibility we owe to future generations.
The universe constantly surprises us, and that’s what makes science so exciting.
一个文明的真正考验在于它如何对待最弱小的成员。
The first duty of a revolutionary is to be educated.
债务要么产生于契约,要么产生于侵权行为。