guestbook [ɡest buk] n.
1. a book in which visitors to a place or special event can write their names, addresses, and short remarks.
eg. The wedding guests left their comments in the large guest book.
2. a Web page where visitors to a site can leave their names and comments.
eg. Please feel free to sign out guestbook.
guestbook的一个意思是住宿登记簿；旅客登记簿，也可以写作guest book; 另一个意思是网页的留言本、留言板，这个意思通常是写作guestbook的。