a good old girl什么意思？

a good old girl 一个年龄较大的好女孩

good old boy看到的比较多：（Slang） A man having qualities held to be characteristic of certain Southern white males, such as a relaxed or informal manner, strong loyalty to family and friends, and often an anti-intellectual bias and intolerant point of view.

参见http://www.thefreedictionary.com/good+old+boy

可能good old girl也能套用这意思吧。

一个年纪较大的好女孩

没什么说道 正常翻译

一个好的老女孩