It's not the plot, but the details of what happens in the story would remain constant.

故事中的细节，而不是情节，会保留原样。

Functions that return objects remain constant.

返回对象的函数保持不变。

In this the data doesn't remain constant.

在这方面的数据不会保持不变。

These fashion principles remain constant;

这些时尚原理保持不变。

Version numbers do not have to remain constant from stream to stream.

版本号码不需要从一个流程到一个流程保持一致。