例句與造句

1. A preglacial valley also occurs in the stream's watershed.
2. The preglacial valley of Hull Creek is now buried.
3. Portions of other preglacial valleys can be seen both east and west of the Genesee, occupied now by lakes.
4. It has been described as " one of the best examples of a preglacial valley buried by glacial deposits ".
5. It's difficult to find preglacial valley in a sentence. 用preglacial valley造句挺難的