yard lumber

例句：

1. 1.The carpenter needed a lot of yard lumber to build the house.
   木匠需要大量的木材来建造房子。
2. 2. The lumber was so thick that it could not be easily cut with a saw.
   这些木材太厚了，不能用锯子轻易地切割。
3. 3.The lumber was delivered to the construction site on a truck.
   这些木材被卡车运送到建筑工地。