木材 (mùcái) refers to wood, which is a natural material derived from trees. It is widely used in construction, furniture making, and various crafts due to its strength, durability, and aesthetic appeal. Different types of wood, such as 松木 (pine) and 橡木 (oak), have unique properties that make them suitable for specific applications. In addition to its practical uses, 木材 plays a significant role in the environment. Trees absorb carbon dioxide, and when harvested sustainably, wood can be a renewable resource. Proper management of forests ensures that 木材 remains available for future generations while supporting biodiversity.