Climate change is one of the biggest challenges of our time, and we must take action now.
气候变化是我们这个时代最大的挑战之一,我们必须立即采取行动。
The best technology is the one you don't notice.
债务要么产生于契约,要么产生于侵权行为。
One must be a god to be able to tell successes from failures without making a mistake.