Ruby objects don't have a well-defined structure.
Ruby对象是不具备良好定义的结构的。
On the one hand, self-education lacks of a well-defined structure.
一方面，自学缺乏系统性的安排。
If you're using SQL LIKE, I doubt you'll be able to do better unless your data items have a well-defined structure.
如果你使用SQL一样，我怀疑你除非你的数据项都有一个明确的结构可以做的更好。
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