Every guy may have his specific girl-next-door prototype, but in general, girl next door is cute and sweet, usually makes a really great friend, she may be very attractive, and is modest about it.

每个男人大概对“邻家女孩”都有自己特定的形象记忆，不过，总体来说，邻家女孩就是甜美可爱的姑娘，她们可以跟你成为很好的朋友，长相出众却不张扬。

Picture your sister's best friend from when you were kids. In your mind she'll always be that 10-year-old cutie who played with you in the park. Only, when you catch up with her 10 years later, she's still a cutie, but all grown up and had become someone you can trust and connect with on so many new levels. 

比如，从你很小就认识的你姐姐的好朋友。在你心里，她一直都是那个跟你在公园里玩耍的十岁小姑娘。就算到了十年以后，她依旧甜美可爱，并且长成了一个你可以信任、有很多共同话题的大姑娘。