石松

例句：

1. 1. The stone wall is a natural barrier between the two villages.
   这堵石墙是两个村庄之间的自然屏障。
2. 2. The pine forest is home to many rare birds and animals.
   松树林是许多稀有鸟类和动物的家园。
3. 3. The rocky terrain makes hiking in this area challenging.
   崎岖的地形使得在这个地区徒步旅行具有挑战性。