英语
西班牙语
英语
西班牙语
单语范例（未经PONS编辑处理）
The oyster beds help the ecosystem by providing habitats and filtering water, improving the quality of the water.
en.wikipedia.org A large oyster bed was found in 1823, and it yielded 50 million oysters within the first year; but overfishing led to its exhaustion within a decade.
en.wikipedia.org It has come to be known in recent years also for its oyster beds, as well as other shellfish.
en.wikipedia.org The report took the view that the canal could not be made profitable and it would be best turned into an oyster bed.
en.wikipedia.org The dredge is towed through an oyster bed by a boat, picking up the oysters in its path.
en.wikipedia.org