What do you mean by "C twins"?

Language c twins [Yu c]: it means inseparable relationship like two flowers. In fact, to put it bluntly, it is a title, but it is more intimate than ordinary C friends.

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C twins are related. Equivalent to good friends, similar to friends.

In layman's terms, twins are like this. In fact, it is similar in character, similar to the relationship between C twins.

Generally speaking, there will be similar names or names that look good together. In some languages, C twins means something similar to lover not full, but it is more like the literal meaning that most people understand. They are somewhat similar to twins.

In my understanding, C twins are beyond the special fetters of ordinary brothers and can sense each other's thoughts. In a word, they are another me in the world.

It is good to literally understand "C twins". There is nothing particularly profound, just a fetter, but now it is more about finding a sense of existence.