翻译一段话：我第一次意识到，，，

The first time I realized this kind of machine would bring huge changes to human's life was when I stood in front of a tall bookshelf full of the books I loved in a bookstore.

I realized for the first time that the machine will bring people to great changes in the bookstore is a high standing before the bookshelf
(the bookshelf is my favorite book)

Standing before a really high bookcase in the book store, I realized for the first time that this kind of machine will greatly change the life of human beings

It is the first time I realized that the machine will bring people huge changes when I stood in frond of a high bookshelf in a bookstore(all the books on the bookshelf are my favorite).

The first time I realized that this machine will bring about tremendous changes it is a book of a very high standing on the shelves before the(That are the shelves of my favorite books)....感觉是标准答案了,你参考下