孩子们在河岸边发现了许多古代的陶器碎片。

The children found many ancient ___potsherds along the riverbank.

考古学家在遗址中发现了大量陶器碎片，这些碎片有助于了解古代文明。

Archaeologists found many ___potsherds at the site, which help us understand ancient civilizations.