A valley partly or wholly submerged by a rise in sea level.
（因海平面上升而造成的）溺谷，沉没谷
Example sentencesExamples
Estuaries in drowned valleys are to varying degrees constrained or ‘rock-bound’.
It seemed ironic that here, in this remote drowned valley in the low tussock hills of Otago, the only remaining evidence of the teeming lost life of gold diggers, aspirating entrepreneurs, dredgers, hoteliers, teachers, farmers and laughing children, was an emblem of death the butcher's killing shed.
Entering the Yule Entrance of the Walcott on an incoming tide is an Amazonian experience, with the muddy inlet becoming a drowned valley in a matter of hours.