1. Natural numbers in the sense of mathematics.
1, the number "2" is the smallest prime number (also called prime number) and the only even prime number.
2. The number "2" is a natural number, and it is also a positive integer, even number, rational number, even number and Hegna number.
Second, it belongs to network language.
The homonym of 1 and 2 is "love". For example, 520 means I love you.
2. The word "2" in the text means that a person's brain is stupid, stupid and slow. For example: second-rate, second-rate, second-rate and so on. It is derogatory to strangers; If you say something to a very familiar person, it is not derogatory, just joking or speechless about his behavior; It will also be used to laugh at yourself.
The word "it" originated from the Internet, and its original meaning is derogatory. Describe a person who behaves strangely and unsociable, similar to SB. Its source should be such derogatory words as idiot, idiot and 250. If you don't use it with the above words (idiot, 250), it is actually a manifestation of being speechless or finding it very interesting.