This is due to the large expanse of the ocean and our limited ability to monitor it.
Within two decades the compact, often mono-nuclear, city of the industrial era became deeply embedded within large expanses of loosely-connected garden suburbs.
Although a laudible attempt, the vast expanse of coverage inevitably meant some significantly sketchy treatment.
The huge expanses of the country's hinterland and their vast population still remain largely unknown to outsiders.
Natural images and contrast encoding in the retina and larger number and of contrasts, large expanses of sky or water were avoided.
And he can see the broad expanse as well.
All ivory gulls were observed in small areas of open water in large expanses covered with mostly solid sea ice.
The platform is surrounded by a vast expanse of darkened stage.
