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 biggest victories are the ones that come from within.
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.
每张皮革都有潜力,我们的责任是负责任地发掘它。