查人人中国名人网ipadair3上市时间2017:请用英语翻译
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/02 08:49:02
书是人类进步的阶梯.
The book is the stairs that the mankind progress.
Books are the steps of human progress.
不知道对不对
Books are stairs for the progress of mankind.
Books, stairs for human's progress.
The book is the steps and ladders which the humanity progresses.
（成功或进级的）阶梯
The book is the ladder of mankind's progress
成功的阶梯
The book is the mankind's progressive stairs.