Nothing is wrong with this code at all; it's just that instead of persisting XML, you really persist data and stuff it in XML, all in one step.

这段代码并没有任何错误；我们只是将数据持久化存储于 XML 中，所有操作都在一步之内完成。

youdao

So far, nothing new here; you map the authors property, and the type is a class this time, instead of string or int.

这很好理解，映射 authors 属性，但其类型是类而不再是 string 或 int。

youdao

None of us there is nothing wrong, you and I do not have the sense of wrong and, instead of saying I am sorry.

我们谁都没有错，在你我之间不存在错与对的意义，不要说对不起。

youdao

He knows it's a lot of work to prepare for a trip, set up and take down a campsite, and yet "there is nothing better than sitting by the fire actually conversing face to face with the people you are camping with instead of texting in a corner by yourself, " wrote McCollough, via e-mail.

CNN: Camping: Horror or bliss?