单语范例（未经PONS编辑处理）
But over the last 15 years, troubled inner-city school districts have seen an explosive growth of privately-operated, publicly funded charter schools, which have drained away union memberships.
prospect.org They looked at sites throughout the country with inner-city school districts located close to major medical centers and a top medical school.
blog.cleveland.com The inner narthex is divided into three bays.
en.wikipedia.org Each float also held the inner ends of a pair of lift struts which joined the outer section of the wing at about mid-span.
en.wikipedia.org You can notice the age of the building by how you have to stoop to go through the inner doors between rooms.
en.wikipedia.org