instant book

例句：

1. 1. I downloaded an instant book to my tablet last night.
   我昨晚在平板电脑上下载了一个电子书。
2. 2. The instant book is a great way to save space and time.
   这个即时书是节省空间和时间的好方法。
3. 3. Many people prefer reading instant books over traditional books.
   许多人更喜欢阅读即时书而不是传统书籍。