BookCrossing provides an identification number to stick inside the book.

BookCrossing 提供了一个可粘贴在书中的识别号。

Now, the website BookCrossing. com turns the page on the traditional idea of a book group.

现在，BookCrossing.com 网站颠覆了传统的图书群组模式。

E-mails are then sent to the BookCrossing to keep them updated about where their books have been found.

然后，电子邮件会被发送到 BookCrossing，让他们随时了解自己的书在哪里被发现。

BookCrossing is part of a trend among people who want to get back to the " real" and not the virtual.

在那些希望回归 “真实” 而非虚拟世界的人群中，BookCrossing 是一种趋势。