夜晚是一座伟大的城市,但星星是它的灯光。
Collaboration between governments, businesses, and scientists is key to protecting our oceans.
在危机时刻,真正的领导力是通过行动而非言语来衡量的。
在认识到热是粒子运动后,很容易得出结论:这种运动必然遵循力学的一般规律。
The task of economics is not only to interpret phenomena, but also to provide practical advice and policies for society.