The stone industry must embrace sustainability to survive in the long run.
神奇数字150表明,我们社交网络的规模受限于大脑的容量。
The first duty of a revolutionary is to be educated.
Competition regulates the rate of profit, and profit regulates the rate of accumulation.
We must invest in technology that not only improves efficiency but also reduces environmental impact.
I don't want to be a symbol, I want to be myself.
体育教育的目标是发展完整的人,而不仅仅是他的肌肉。