例句與造句

1. Quaternary volcanic rocks are found mainly in the Nicaraguan Concepcion and Maderas volcanoes mark the end of Nicaraguan section of the CAVF.
2. Quaternary volcanic rocks exposed in Bacan and the extreme south of Halmahera are not direct products of subduction but, rather, display geochemical characteristics of both subduction and fault-related magmatism.
3. It's difficult to find quaternary volcanic rocks in a sentence. 用quaternary volcanic rocks造句挺難的