（有时用于代替 am not，aren't，isn't，haven't 和 hasn't; 有人认为该用法不正确） People sometimes use ain't instead of 'am not', 'aren't', 'isn't', 'haven't', and 'hasn't'. Some people consider this use to be incorrect. （有时用于代替 am not，aren't，isn't，haven't 和 hasn't; 有人认为该用法不正确）
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Well, it's obvious, ain't it?.
嗯，这很明显，不是吗？
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I ain't got kids, but I have to pay towards the schools.
我没有孩子，但是我必须向学校交钱。