这些行也存在于长版本中，但是所有的冗余行都被删除了。
All lines of code are present in the long version, but all redundant lines have been removed.
我不担心冗余。我可能会把同一行日志记录在几个文件中。
I don't worry about redundancy. I might log the same line in several files.
为了便于检索应用程序，开发人员被鼓励将冗余信息放入每一行，而不是设计规范化的关系模型。
Instead of designing a normalized relational model, application developers are encouraged to put redundant information into each row for easier retrieval.
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