例句與造句

1. The whole valley of the Bi
   -Bosut is actually an old, fossil river bed of the Sava.
2. While this Miocene conglomerate emerges from the banks of each river terrace, the quartzite in the conglomerate on the TT-2 platform, just northwest of the municipality of Siete Iglesias de Trabancos, likely derives from the action of the Duero River rather than the Trabancos River, as a slope in the terrain is thought to have caused the formation of an alluvial fan that deposited quartzite on the fluvial fossil river bed of the Trabancos.
3. It's difficult to find fossil river bed in a sentence. 用fossil river bed造句挺難的