1. It has made extraordinary progress in the accumulation of knowledge.
    但在知识积累方面却取得了巨大的进步。

2. Today´s snowfall superimposed a fresh two inches yesterday´s accumulation.
    今天的雪又新添加两寸在昨天的积雪上。

3. Extraordinary progress in the accumulation of knowledge.
    但人类在积累知识方面已经取得了非凡的进步.