He compares the device to a book shelf with very thin shelves placed exactly far enough apart to accommodate the books.
他把这个装置比作一个隔板很薄但又放得足够远以放置许多书本的书架。
Yet the cost of the device is around $150 – $300, and the price of each book is around $10.
但是，阅读器的价格大约在150刀到300刀之间，而每本书只要大约10刀。
The test subjects said that reading on the PC felt too much like being at work, while they found it more relaxing to read a printed book than on an electronic device.
而个人电脑显示器排名最后，仅得到3.6分。测试对象表示，在电脑上阅读的感觉非常像在工作，同时相对于电子设备，他们感觉阅读印刷书籍更为放松。
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