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.