flat sawn lumber

例句：

1. 1. We need to buy some flat-sawn lumber for the new house.
   我们需要买一些新的平锯材来建新房子。
2. 2.The engineer used a flat-sawn lumber to build the bridge.
   工程师用平锯材建造了这座桥。
3. 3. Flat-sawn lumber is more durable than other types of wood.
   与其他类型的木材相比，平锯材更耐用。