Collaboration across industries is key to solving the global challenges we face in food security.
我们开采的每一块煤都在为某个家庭点亮灯光。
技术不仅仅是一种工具，它可以让学习者拥有以前可能没有的声音。
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.