皮革的未来在于传统与技术之间的平衡。

The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.

Music is more than a beautiful melody. It is the deepest expression of the human soul.

货币政策中的时间不一致性问题出现在政策制定者一旦经济主体根据宣布的政策采取行动后，就有动机偏离该政策。