catchment area
1 (also catchment basin) area from which rainfall flows into a river, reservoir, etc 集水盆地(雨水由此处流入江河、 水库等).
2 (also catchment) area from which people are sent to a particular school, hospital, etc 属区(人们由此处被送到某学校、 医院等)
a school with a large catchment area 有大范围招生区的学校.
Could any spectacle, for instance, be more grimly whimsical than that of gunners ourselves very seriously what will happen if this twofold use of knowledge, with its ever-increasing power, continues.