When someone tries an online dating website, they often are on unfamiliar ground because etiquette differs from the real world. (mlive.com)
A glance at the Table of Contents brings the realization that this book covers unfamiliar ground — ground seldom written about or addressed directly. (educationworld.com)
One of the most difficult aspects of knowing your pet is lost is facing the idea that they are wandering on unfamiliar ground and are frightened in the big world. (fixnation.org)