Er saß stundenlang in seine Gedanken versunken am Fenster.

He sat by the window for hours, lost in thought.

Sie saß ganz in ihre Lektüre versunken im Sessel.

She sat in the armchair, completely engrossed in her reading.

Die Archäologen suchten nach der im Meer versunkenen Stadt.

The archaeologists searched for the city that had sunk into the sea.