Deltas

Because we like each other.

因为我们彼此喜欢。

A standard one. Replacement during the first year if all rules for proper use have been followed.

有一个原则，如果在一年内符合各种使用规定，就可更换。

Next, if it is not a story, get an idea of the organization of the book. Read the back cover and the introduction. Look at the pictures and the short texts below them. Turn to the front of the book and look at the contents. This way you can decide whether

其次，如果不是故事书，你就要对书的篇章结构有所了解。看看目录。这样，你就可以判断这本书是否可能引起你的兴趣。如果是这样，你就可以断定哪几个部分最有用，最有趣。