I really don't know her和I don't really know her的区别

I really don't know her和I don't really know her的区别
I really don't know her和I don't really know her的区别

I really don't know her和I don't really know her的区别
第一句翻译：我真的不认识她,强调不认识
第二句翻译为我不是很了解（认识）她,强调程度,即我可能听说过或认识她,但不是很熟.而第一句则是完全不认识