书籍是人类进步的阶梯 meaning in English
books are the stepping stones to human progress
Examples
- The books are the ladder of the progress of mankind
33书籍是人类进步的阶梯 - The book is the mankind ' s progressive stairs
（书籍是人类进步的阶梯。 ） - Books are the stepping stones to human progress
书籍是人类进步的阶梯。