spruce fir

例句：

1. 1. The forest was dense with spruces and pines.
   森林里满是冷杉和松树。
2. 2. The spruce fir is a popular choice for indoor plants.
   冷杉是室内植物的热门选择。
3. 3. The spruce fir has a distinctive aroma that fills the air.
   冷杉有一种独特的香味，弥漫在空气中。