It is slang (俚语), not an abbreviation (缩写).
The real is word is either "am not" or "are not."
You should know what this word means, but you should probably never use it.
14 Aralık 2012
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這是速記 is not, am not, are not, don't, haven't 和 hasn't.
它俚語
14 Aralık 2012
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Hâlâ cevap bulamadın mı?
Sorularını yaz ve ana dil konuşanlar sana yardım etsin!