书籍是人类进步的阶梯英语怎么读?（书籍是人类进步的阶梯用英语怎么读）

读书是人类进步的阶梯用英语怎么翻译 books are the stepping stones to human progress 书籍: books; works; literature 是: Semantics 人类进步: human progress 的: 4次方是 The fourth power of 2 i ... 阶梯: a flight of stairs; ladder; ...书是人类进步的阶梯用英语怎么说？ 书是人类进步的阶梯用英语B...