1. There is often a progressive loss of sight in old age.
    人到老年视力往往逐渐衰退。

2. Later, we shall undergo a progressive loss of our vigour and resistance which,
    再迟一些，我们就要经历生命力和抵抗力逐步衰退的过程。

3. My friend, Patrick, has always been a fanatical opponent of Mr. Lane´s Radical Progressive Party.
    我的朋友帕特里克一直是莱恩先生的激进党的强烈反对者。

4. It is the ideal condition of the ´equal start´ which only our most progressive forms of modern education try to regain.
    这就是我们最进步的现代教育试图恢复的"平等起步"的理想状况。