line timber

例句：

1. 1. The engineer used line timber to build the bridge.
   工程师使用线材建造了这座桥。
2. 2.Timber is a renewable resource that can be harvested and reused.
   木材是一种可再生资源，可以被采集并重复使用。
3. 3. Timber prices have been rising due to increased demand for building materials.
   由于对建筑材料需求的增加，木材价格一直在上涨。