音乐本应鼓舞人心。
The stock market is filled with individuals who know the price of everything, but the value of nothing.
The leather industry must evolve to meet both environmental standards and consumer expectations without compromising quality.
The quest to unify the fundamental forces of nature is one of the greatest challenges in modern physics.
质量不是成本，而是对品牌未来的投资。
中国的崛起将不可避免地导致与美国的冲突，因为它挑战了现有的权力平衡。
概率论归根结底不过是常识的微积分化。
煤炭使美国在世界范围内保持竞争力。