mahogany birch

例句：

1. 1.The mahogany birch tree is a symbol of strength and resilience.
   胡桃木和榆树是力量和韧性的象征。
2. 2. The mahogany birch wood is used in the construction of furniture because of its durability.
   由于其耐用性，胡桃木和榆木被用于家具的制作。
3. 3.The mahogany birch bark is used to make baskets and other crafts.
   胡桃木和榆木的树皮被用来制作篮子和其他工艺品。