The steel industry must evolve or risk becoming obsolete. Adaptation is survival.
二叠纪盆地将在未来几十年内保持美国石油生产的皇冠地位。
The deepest problems of modern life derive from the claim of the individual to preserve the autonomy and individuality of his existence in the face of overwhelming social forces, of historical heritage, of external culture, and of the technique of life.