If that's too expensive for you, buy your fresh copy new and then buy a used book, either from a fantastic indie bookstore or online at Thriftbooks, that you can deface with abandon.
如果这对你来说太贵了,那就买一本新的,然后买一本二手书,可以从一家很棒的独立书店,也能
Thriftbooks的网上买,这样你就可以随意
改了。